diff --git a/CHANGELOG.md b/CHANGELOG.md
index d8506f9ba8ac..6b13685bcf63 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 ## Changelog
 ##### Unreleased
+- [Well-Formed Unicode Strings](https://github.com/tc39/proposal-is-usv-string) proposal:
+  - Methods:
+    - `String.prototype.isWellFormed`
+    - `String.prototype.toWellFormed`
+  - Moved to Stage 3, [November TC39 meeting](https://github.com/babel/proposals/issues/85#issuecomment-1332180862)
+  - Added `/actual/` entries, disabled unconditional forced replacement
 - Fixed a theoretically possible future conflict of polyfills definitions in the pure version
 - [Compat data targets](/packages/core-js-compat#targets-option) improvements:
   - [React Native from 0.70 shipped with Hermes as the default engine.](https://reactnative.dev/blog/2022/07/08/hermes-as-the-default) However, bundled Hermes versions differ from standalone Hermes releases. So added **`react-native`** target for React Native with bundled Hermes.
diff --git a/README.md b/README.md
index 423398e16bd5..90269d2c222c 100644
--- a/README.md
+++ b/README.md
@@ -128,12 +128,12 @@ queueMicrotask(() => console.log('called as microtask'));
       - [`Array.fromAsync`](#arrayfromasync)
       - [`Array` grouping](#array-grouping)
       - [Change `Array` by copy](#change-array-by-copy)
+      - [Well-formed unicode strings](#well-formed-unicode-strings)
     - [Stage 2 proposals](#stage-2-proposals)
       - [`Iterator` helpers](#iterator-helpers)
       - [New `Set` methods](#new-set-methods)
       - [`Map.prototype.emplace`](#mapprototypeemplace)
       - [`Array.isTemplateObject`](#arrayistemplateobject)
-      - [Well-formed unicode strings](#well-formed-unicode-strings)
       - [`Symbol.{ asyncDispose, dispose }` for `using` statement](#symbol-asyncdispose-dispose--for-using-statement)
       - [`Symbol.metadataKey` for decorators metadata proposal](#symbolmetadatakey-for-decorators-metadata-proposal)
     - [Stage 1 proposals](#stage-1-proposals)
@@ -2174,6 +2174,28 @@ const correctionNeeded = [1, 1, 3];
 correctionNeeded.with(1, 2); // => [1, 2, 3]
 correctionNeeded; // => [1, 1, 3]
 ````
+##### [Well-formed unicode strings](https://github.com/tc39/proposal-is-usv-string)[⬆](#index)
+Modules [`esnext.string.is-well-formed`](https://github.com/zloirock/core-js/blob/master/packages/core-js/modules/esnext.string.is-well-formed.js) and [`esnext.string.to-well-formed`](https://github.com/zloirock/core-js/blob/master/packages/core-js/modules/esnext.string.to-well-formed.js)
+```js
+class String {
+  isWellFormed(): boolean;
+  toWellFormed(): string;
+}
+```
+[*CommonJS entry points:*](#commonjs-api)
+```js
+core-js/proposals/well-formed-unicode-strings
+core-js(-pure)/actual|full/string(/virtual)/is-well-formed
+core-js(-pure)/actual|full/string(/virtual)/to-well-formed
+```
+[*Examples*](https://tinyurl.com/2fulc2ak):
+```js
+'a💩b'.isWellFormed();      // => true
+'a\uD83Db'.isWellFormed();  // => false
+
+'a💩b'.toWellFormed();      // => 'a💩b'
+'a\uD83Db'.toWellFormed();  // => 'a�b'
+```
 
 #### Stage 2 proposals[⬆](#index)
 [*CommonJS entry points:*](#commonjs-api)
@@ -2361,28 +2383,6 @@ core-js(-pure)/full/array/is-template-object
 ```js
 console.log(Array.isTemplateObject((it => it)`qwe${ 123 }asd`)); // => true
 ```
-##### [Well-formed unicode strings](https://github.com/tc39/proposal-is-usv-string)[⬆](#index)
-Modules [`esnext.string.is-well-formed`](https://github.com/zloirock/core-js/blob/master/packages/core-js/modules/esnext.string.is-well-formed.js) and [`esnext.string.to-well-formed`](https://github.com/zloirock/core-js/blob/master/packages/core-js/modules/esnext.string.to-well-formed.js)
-```js
-class String {
-  isWellFormed(): boolean;
-  toWellFormed(): string;
-}
-```
-[*CommonJS entry points:*](#commonjs-api)
-```js
-core-js/proposals/well-formed-unicode-strings
-core-js(-pure)/full/string(/virtual)/is-well-formed
-core-js(-pure)/full/string(/virtual)/to-well-formed
-```
-[*Examples*](https://tinyurl.com/2fulc2ak):
-```js
-'a💩b'.isWellFormed();      // => true
-'a\uD83Db'.isWellFormed();  // => false
-
-'a💩b'.toWellFormed();      // => 'a💩b'
-'a\uD83Db'.toWellFormed();  // => 'a�b'
-```
 ##### [`Symbol.{ asyncDispose, dispose }` for `using` statement](https://github.com/tc39/proposal-using-statement)[⬆](#index)
 Modules [`esnext.symbol.dispose`](https://github.com/zloirock/core-js/blob/master/packages/core-js/modules/esnext.symbol.dispose.js) and [`esnext.symbol.async-dispose`](https://github.com/zloirock/core-js/blob/master/packages/core-js/modules/esnext.symbol.async-dispose.js).
 ```js
diff --git a/packages/core-js/actual/instance/is-well-formed.js b/packages/core-js/actual/instance/is-well-formed.js
new file mode 100644
index 000000000000..a8a8c438cea2
--- /dev/null
+++ b/packages/core-js/actual/instance/is-well-formed.js
@@ -0,0 +1,10 @@
+var isPrototypeOf = require('../../internals/object-is-prototype-of');
+var method = require('../string/virtual/is-well-formed');
+
+var StringPrototype = String.prototype;
+
+module.exports = function (it) {
+  var own = it.isWellFormed;
+  return typeof it == 'string' || it === StringPrototype
+    || (isPrototypeOf(StringPrototype, it) && own === StringPrototype.isWellFormed) ? method : own;
+};
diff --git a/packages/core-js/actual/instance/to-well-formed.js b/packages/core-js/actual/instance/to-well-formed.js
new file mode 100644
index 000000000000..32e8e030dcf7
--- /dev/null
+++ b/packages/core-js/actual/instance/to-well-formed.js
@@ -0,0 +1,10 @@
+var isPrototypeOf = require('../../internals/object-is-prototype-of');
+var method = require('../string/virtual/to-well-formed');
+
+var StringPrototype = String.prototype;
+
+module.exports = function (it) {
+  var own = it.toWellFormed;
+  return typeof it == 'string' || it === StringPrototype
+    || (isPrototypeOf(StringPrototype, it) && own === StringPrototype.toWellFormed) ? method : own;
+};
diff --git a/packages/core-js/actual/string/index.js b/packages/core-js/actual/string/index.js
index 4b4a2636bb2a..e75b34e00a0f 100644
--- a/packages/core-js/actual/string/index.js
+++ b/packages/core-js/actual/string/index.js
@@ -1,3 +1,6 @@
 var parent = require('../../stable/string');
 
+require('../../modules/esnext.string.is-well-formed');
+require('../../modules/esnext.string.to-well-formed');
+
 module.exports = parent;
diff --git a/packages/core-js/actual/string/is-well-formed.js b/packages/core-js/actual/string/is-well-formed.js
new file mode 100644
index 000000000000..cc23bc9d128d
--- /dev/null
+++ b/packages/core-js/actual/string/is-well-formed.js
@@ -0,0 +1,3 @@
+require('../../modules/esnext.string.is-well-formed');
+
+module.exports = require('../../internals/entry-unbind')('String', 'isWellFormed');
diff --git a/packages/core-js/actual/string/to-well-formed.js b/packages/core-js/actual/string/to-well-formed.js
new file mode 100644
index 000000000000..133cc4d0b263
--- /dev/null
+++ b/packages/core-js/actual/string/to-well-formed.js
@@ -0,0 +1,3 @@
+require('../../modules/esnext.string.to-well-formed');
+
+module.exports = require('../../internals/entry-unbind')('String', 'toWellFormed');
diff --git a/packages/core-js/actual/string/virtual/index.js b/packages/core-js/actual/string/virtual/index.js
index 8442860839d7..539e1515c173 100644
--- a/packages/core-js/actual/string/virtual/index.js
+++ b/packages/core-js/actual/string/virtual/index.js
@@ -1,3 +1,6 @@
 var parent = require('../../../stable/string/virtual');
 
+require('../../../modules/esnext.string.is-well-formed');
+require('../../../modules/esnext.string.to-well-formed');
+
 module.exports = parent;
diff --git a/packages/core-js/actual/string/virtual/is-well-formed.js b/packages/core-js/actual/string/virtual/is-well-formed.js
new file mode 100644
index 000000000000..482609c47222
--- /dev/null
+++ b/packages/core-js/actual/string/virtual/is-well-formed.js
@@ -0,0 +1,3 @@
+require('../../../modules/esnext.string.is-well-formed');
+
+module.exports = require('../../../internals/entry-virtual')('String').isWellFormed;
diff --git a/packages/core-js/actual/string/virtual/to-well-formed.js b/packages/core-js/actual/string/virtual/to-well-formed.js
new file mode 100644
index 000000000000..e7416e18f74a
--- /dev/null
+++ b/packages/core-js/actual/string/virtual/to-well-formed.js
@@ -0,0 +1,3 @@
+require('../../../modules/esnext.string.to-well-formed');
+
+module.exports = require('../../../internals/entry-virtual')('String').toWellFormed;
diff --git a/packages/core-js/full/instance/is-well-formed.js b/packages/core-js/full/instance/is-well-formed.js
index a8a8c438cea2..def9c64c7715 100644
--- a/packages/core-js/full/instance/is-well-formed.js
+++ b/packages/core-js/full/instance/is-well-formed.js
@@ -1,10 +1,3 @@
-var isPrototypeOf = require('../../internals/object-is-prototype-of');
-var method = require('../string/virtual/is-well-formed');
+var parent = require('../../actual/instance/is-well-formed');
 
-var StringPrototype = String.prototype;
-
-module.exports = function (it) {
-  var own = it.isWellFormed;
-  return typeof it == 'string' || it === StringPrototype
-    || (isPrototypeOf(StringPrototype, it) && own === StringPrototype.isWellFormed) ? method : own;
-};
+module.exports = parent;
diff --git a/packages/core-js/full/instance/to-well-formed.js b/packages/core-js/full/instance/to-well-formed.js
index 32e8e030dcf7..a8db323e3b39 100644
--- a/packages/core-js/full/instance/to-well-formed.js
+++ b/packages/core-js/full/instance/to-well-formed.js
@@ -1,10 +1,3 @@
-var isPrototypeOf = require('../../internals/object-is-prototype-of');
-var method = require('../string/virtual/to-well-formed');
+var parent = require('../../actual/instance/to-well-formed');
 
-var StringPrototype = String.prototype;
-
-module.exports = function (it) {
-  var own = it.toWellFormed;
-  return typeof it == 'string' || it === StringPrototype
-    || (isPrototypeOf(StringPrototype, it) && own === StringPrototype.toWellFormed) ? method : own;
-};
+module.exports = parent;
diff --git a/packages/core-js/full/string/index.js b/packages/core-js/full/string/index.js
index 35b61127bf30..f8ddb599dd9f 100644
--- a/packages/core-js/full/string/index.js
+++ b/packages/core-js/full/string/index.js
@@ -3,10 +3,8 @@ var parent = require('../../actual/string');
 require('../../modules/esnext.string.at');
 require('../../modules/esnext.string.cooked');
 require('../../modules/esnext.string.code-points');
-require('../../modules/esnext.string.is-well-formed');
 // TODO: remove from `core-js@4`
 require('../../modules/esnext.string.match-all');
 require('../../modules/esnext.string.replace-all');
-require('../../modules/esnext.string.to-well-formed');
 
 module.exports = parent;
diff --git a/packages/core-js/full/string/is-well-formed.js b/packages/core-js/full/string/is-well-formed.js
index cc23bc9d128d..e8815f506c9b 100644
--- a/packages/core-js/full/string/is-well-formed.js
+++ b/packages/core-js/full/string/is-well-formed.js
@@ -1,3 +1,3 @@
-require('../../modules/esnext.string.is-well-formed');
+var parent = require('../../actual/string/is-well-formed');
 
-module.exports = require('../../internals/entry-unbind')('String', 'isWellFormed');
+module.exports = parent;
diff --git a/packages/core-js/full/string/to-well-formed.js b/packages/core-js/full/string/to-well-formed.js
index 133cc4d0b263..9c297370a07d 100644
--- a/packages/core-js/full/string/to-well-formed.js
+++ b/packages/core-js/full/string/to-well-formed.js
@@ -1,3 +1,3 @@
-require('../../modules/esnext.string.to-well-formed');
+var parent = require('../../actual/string/to-well-formed');
 
-module.exports = require('../../internals/entry-unbind')('String', 'toWellFormed');
+module.exports = parent;
diff --git a/packages/core-js/full/string/virtual/index.js b/packages/core-js/full/string/virtual/index.js
index d72428636eb6..5838517a3bcc 100644
--- a/packages/core-js/full/string/virtual/index.js
+++ b/packages/core-js/full/string/virtual/index.js
@@ -2,10 +2,8 @@ var parent = require('../../../actual/string/virtual');
 // TODO: remove from `core-js@4`
 require('../../../modules/esnext.string.at');
 require('../../../modules/esnext.string.code-points');
-require('../../../modules/esnext.string.is-well-formed');
 // TODO: remove from `core-js@4`
 require('../../../modules/esnext.string.match-all');
 require('../../../modules/esnext.string.replace-all');
-require('../../../modules/esnext.string.to-well-formed');
 
 module.exports = parent;
diff --git a/packages/core-js/full/string/virtual/is-well-formed.js b/packages/core-js/full/string/virtual/is-well-formed.js
index 482609c47222..b963805cb132 100644
--- a/packages/core-js/full/string/virtual/is-well-formed.js
+++ b/packages/core-js/full/string/virtual/is-well-formed.js
@@ -1,3 +1,3 @@
-require('../../../modules/esnext.string.is-well-formed');
+var parent = require('../../../actual/string/virtual/is-well-formed');
 
-module.exports = require('../../../internals/entry-virtual')('String').isWellFormed;
+module.exports = parent;
diff --git a/packages/core-js/full/string/virtual/to-well-formed.js b/packages/core-js/full/string/virtual/to-well-formed.js
index e7416e18f74a..bc135a4fa234 100644
--- a/packages/core-js/full/string/virtual/to-well-formed.js
+++ b/packages/core-js/full/string/virtual/to-well-formed.js
@@ -1,3 +1,3 @@
-require('../../../modules/esnext.string.to-well-formed');
+var parent = require('../../../actual/string/virtual/to-well-formed');
 
-module.exports = require('../../../internals/entry-virtual')('String').toWellFormed;
+module.exports = parent;
diff --git a/packages/core-js/modules/esnext.string.is-well-formed.js b/packages/core-js/modules/esnext.string.is-well-formed.js
index 3e159ef7365c..7c77f380d414 100644
--- a/packages/core-js/modules/esnext.string.is-well-formed.js
+++ b/packages/core-js/modules/esnext.string.is-well-formed.js
@@ -8,7 +8,7 @@ var charCodeAt = uncurryThis(''.charCodeAt);
 
 // `String.prototype.isWellFormed` method
 // https://github.com/tc39/proposal-is-usv-string
-$({ target: 'String', proto: true, forced: true }, {
+$({ target: 'String', proto: true }, {
   isWellFormed: function isWellFormed() {
     var S = toString(requireObjectCoercible(this));
     var length = S.length;
diff --git a/packages/core-js/modules/esnext.string.to-well-formed.js b/packages/core-js/modules/esnext.string.to-well-formed.js
index 8a37c1be2cbc..6d2c616c8cf7 100644
--- a/packages/core-js/modules/esnext.string.to-well-formed.js
+++ b/packages/core-js/modules/esnext.string.to-well-formed.js
@@ -12,7 +12,7 @@ var REPLACEMENT_CHARACTER = '\uFFFD';
 
 // `String.prototype.toWellFormed` method
 // https://github.com/tc39/proposal-is-usv-string
-$({ target: 'String', proto: true, forced: true }, {
+$({ target: 'String', proto: true }, {
   toWellFormed: function toWellFormed() {
     var S = toString(requireObjectCoercible(this));
     var length = S.length;
diff --git a/packages/core-js/stage/2.js b/packages/core-js/stage/2.js
index b96cfe7cf116..b91d985f13bc 100644
--- a/packages/core-js/stage/2.js
+++ b/packages/core-js/stage/2.js
@@ -6,7 +6,6 @@ require('../proposals/iterator-helpers');
 require('../proposals/map-upsert-stage-2');
 require('../proposals/set-methods');
 require('../proposals/using-statement');
-require('../proposals/well-formed-unicode-strings');
 // TODO: Obsolete versions, remove from `core-js@4`
 require('../proposals/array-grouping');
 require('../proposals/decorators');
diff --git a/packages/core-js/stage/3.js b/packages/core-js/stage/3.js
index 9097f2dbfd7c..d8bceb3a6f98 100644
--- a/packages/core-js/stage/3.js
+++ b/packages/core-js/stage/3.js
@@ -3,6 +3,7 @@ var parent = require('./4');
 require('../proposals/array-from-async-stage-2');
 require('../proposals/array-grouping-stage-3-2');
 require('../proposals/change-array-by-copy');
+require('../proposals/well-formed-unicode-strings');
 // TODO: Obsolete versions, remove from `core-js@4`
 require('../proposals/array-grouping-stage-3');
 
diff --git a/tests/entries/unit.mjs b/tests/entries/unit.mjs
index 88465dc1d534..4934d5dc91ea 100644
--- a/tests/entries/unit.mjs
+++ b/tests/entries/unit.mjs
@@ -614,6 +614,10 @@ for (PATH of ['core-js-pure', 'core-js']) {
     ok(load(NS, 'array/virtual/to-reversed').call([1, 2, 3])[0] === 3);
     ok(load(NS, 'array/virtual/to-sorted').call([3, 2, 1])[0] === 1);
     ok(load(NS, 'array/virtual/to-spliced').call([3, 2, 1], 1, 1, 4, 5).length === 4);
+    ok(load(NS, 'string/is-well-formed')('a'));
+    ok(load(NS, 'string/virtual/is-well-formed').call('a'));
+    ok(load(NS, 'string/to-well-formed')('a') === 'a');
+    ok(load(NS, 'string/virtual/to-well-formed').call('a') === 'a');
 
     const instanceGroup = load(NS, 'instance/group');
     ok(typeof instanceGroup == 'function');
@@ -662,6 +666,18 @@ for (PATH of ['core-js-pure', 'core-js']) {
     ok(instanceWith({}) === undefined);
     ok(typeof instanceWith([]) == 'function');
     ok(instanceWith([]).call([1, 2, 3], 1, 4)[1] === 4);
+
+    const instanceIsWellFormed = load(NS, 'instance/is-well-formed');
+    ok(typeof instanceIsWellFormed == 'function');
+    ok(instanceIsWellFormed({}) === undefined);
+    ok(typeof instanceIsWellFormed('') == 'function');
+    ok(instanceIsWellFormed('').call('a'));
+
+    const instanceToWellFormed = load(NS, 'instance/to-well-formed');
+    ok(typeof instanceToWellFormed == 'function');
+    ok(instanceToWellFormed({}) === undefined);
+    ok(typeof instanceToWellFormed('') == 'function');
+    ok(instanceToWellFormed('').call('a') === 'a');
   }
 
   for (const NS of ['full', 'features']) {
@@ -787,10 +803,6 @@ for (PATH of ['core-js-pure', 'core-js']) {
     ok(load(NS, 'string/cooked')`a${ 1 }b` === 'a1b');
     ok('next' in load(NS, 'string/code-points')('a'));
     ok('next' in load(NS, 'string/virtual/code-points').call('a'));
-    ok(load(NS, 'string/is-well-formed')('a'));
-    ok(load(NS, 'string/virtual/is-well-formed').call('a'));
-    ok(load(NS, 'string/to-well-formed')('a') === 'a');
-    ok(load(NS, 'string/virtual/to-well-formed').call('a') === 'a');
     ok(load(NS, 'symbol/async-dispose'));
     ok(load(NS, 'symbol/dispose'));
     ok(load(NS, 'symbol/matcher'));
@@ -827,18 +839,6 @@ for (PATH of ['core-js-pure', 'core-js']) {
     ok(typeof instanceFilterReject([]) == 'function');
     ok(instanceFilterReject([]).call([1, 2, 3], it => it % 2).length === 1);
 
-    const instanceIsWellFormed = load(NS, 'instance/is-well-formed');
-    ok(typeof instanceIsWellFormed == 'function');
-    ok(instanceIsWellFormed({}) === undefined);
-    ok(typeof instanceIsWellFormed('') == 'function');
-    ok(instanceIsWellFormed('').call('a'));
-
-    const instanceToWellFormed = load(NS, 'instance/to-well-formed');
-    ok(typeof instanceToWellFormed == 'function');
-    ok(instanceToWellFormed({}) === undefined);
-    ok(typeof instanceToWellFormed('') == 'function');
-    ok(instanceToWellFormed('').call('a') === 'a');
-
     const instanceUniqueBy = load(NS, 'instance/unique-by');
     ok(typeof instanceUniqueBy == 'function');
     ok(instanceUniqueBy({}) === undefined);
diff --git a/tests/unit-pure/esnext.string.is-well-formed.js b/tests/unit-pure/esnext.string.is-well-formed.js
index c3f5c785bd2b..d15b01e1a88f 100644
--- a/tests/unit-pure/esnext.string.is-well-formed.js
+++ b/tests/unit-pure/esnext.string.is-well-formed.js
@@ -1,6 +1,6 @@
 import { STRICT } from '../helpers/constants';
 import Symbol from 'core-js-pure/es/symbol';
-import isWellFormed from 'core-js-pure/full/string/virtual/is-well-formed';
+import isWellFormed from 'core-js-pure/actual/string/virtual/is-well-formed';
 
 QUnit.test('String#isWellFormed', assert => {
   assert.isFunction(isWellFormed);
diff --git a/tests/unit-pure/esnext.string.to-well-formed.js b/tests/unit-pure/esnext.string.to-well-formed.js
index b82afaf93ac9..b6927406e670 100644
--- a/tests/unit-pure/esnext.string.to-well-formed.js
+++ b/tests/unit-pure/esnext.string.to-well-formed.js
@@ -1,6 +1,6 @@
 import { STRICT } from '../helpers/constants';
 import Symbol from 'core-js-pure/es/symbol';
-import toWellFormed from 'core-js-pure/full/string/virtual/to-well-formed';
+import toWellFormed from 'core-js-pure/actual/string/virtual/to-well-formed';
 
 QUnit.test('String#toWellFormed', assert => {
   assert.isFunction(toWellFormed);