diff --git a/changelog/change_interpolated_string_literals_are_no.md b/changelog/change_interpolated_string_literals_are_no.md
new file mode 100644
index 00000000000..ae931e91ee3
--- /dev/null
+++ b/changelog/change_interpolated_string_literals_are_no.md
@@ -0,0 +1 @@
+* [#10006](https://github.com/rubocop/rubocop/pull/10006): Interpolated string literals are no longer frozen since Ruby 3.0. ([@splattael][])
diff --git a/lib/rubocop/cop/mixin/frozen_string_literal.rb b/lib/rubocop/cop/mixin/frozen_string_literal.rb
index 137ffb0aa2b..02101b0cc5b 100644
--- a/lib/rubocop/cop/mixin/frozen_string_literal.rb
+++ b/lib/rubocop/cop/mixin/frozen_string_literal.rb
@@ -8,9 +8,10 @@ module FrozenStringLiteral
 
       FROZEN_STRING_LITERAL = '# frozen_string_literal:'
       FROZEN_STRING_LITERAL_ENABLED = '# frozen_string_literal: true'
-      FROZEN_STRING_LITERAL_TYPES = %i[str dstr].freeze
+      FROZEN_STRING_LITERAL_TYPES_RUBY27 = %i[str dstr].freeze
+      FROZEN_STRING_LITERAL_TYPES_RUBY30 = %i[str].freeze
 
-      private_constant :FROZEN_STRING_LITERAL_TYPES
+      private_constant :FROZEN_STRING_LITERAL_TYPES_RUBY27, :FROZEN_STRING_LITERAL_TYPES_RUBY30
 
       def frozen_string_literal_comment_exists?
         leading_comment_lines.any? { |line| MagicComment.parse(line).valid_literal_value? }
@@ -19,7 +20,13 @@ def frozen_string_literal_comment_exists?
       private
 
       def frozen_string_literal?(node)
-        FROZEN_STRING_LITERAL_TYPES.include?(node.type) && frozen_string_literals_enabled?
+        literal_types = if target_ruby_version >= 3.0
+                          FROZEN_STRING_LITERAL_TYPES_RUBY30
+                        else
+                          FROZEN_STRING_LITERAL_TYPES_RUBY27
+                        end
+
+        literal_types.include?(node.type) && frozen_string_literals_enabled?
       end
 
       def frozen_string_literals_enabled?
diff --git a/lib/rubocop/cop/style/mutable_constant.rb b/lib/rubocop/cop/style/mutable_constant.rb
index 7dca62cf4a4..3801ce3cc30 100644
--- a/lib/rubocop/cop/style/mutable_constant.rb
+++ b/lib/rubocop/cop/style/mutable_constant.rb
@@ -21,6 +21,9 @@ module Style
       #
       # NOTE: Regexp and Range literals are frozen objects since Ruby 3.0.
       #
+      # NOTE: From Ruby 3.0, this cop allows explicit freezing of interpolated
+      # string literals when `# frozen-string-literal: true` is used.
+      #
       # @example EnforcedStyle: literals (default)
       #   # bad
       #   CONST = [1, 2, 3]
diff --git a/lib/rubocop/cop/style/redundant_freeze.rb b/lib/rubocop/cop/style/redundant_freeze.rb
index 8d945eac85a..a8df5517436 100644
--- a/lib/rubocop/cop/style/redundant_freeze.rb
+++ b/lib/rubocop/cop/style/redundant_freeze.rb
@@ -7,6 +7,9 @@ module Style
       #
       # NOTE: Regexp and Range literals are frozen objects since Ruby 3.0.
       #
+      # NOTE: From Ruby 3.0, this cop allows explicit freezing of interpolated
+      # string literals when `# frozen-string-literal: true` is used.
+      #
       # @example
       #   # bad
       #   CONST = 1.freeze
diff --git a/spec/rubocop/cop/style/mutable_constant_spec.rb b/spec/rubocop/cop/style/mutable_constant_spec.rb
index 4c7cec74e4f..a5073b9e225 100644
--- a/spec/rubocop/cop/style/mutable_constant_spec.rb
+++ b/spec/rubocop/cop/style/mutable_constant_spec.rb
@@ -106,20 +106,40 @@
       end
     end
 
-    context 'when the frozen string literal comment is missing' do
-      it_behaves_like 'mutable objects', '"#{a}"'
-    end
+    context 'Ruby 3.0 or higher', :ruby30 do
+      context 'when the frozen string literal comment is missing' do
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
 
-    context 'when the frozen string literal comment is true' do
-      let(:prefix) { '# frozen_string_literal: true' }
+      context 'when the frozen string literal comment is true' do
+        let(:prefix) { '# frozen_string_literal: true' }
 
-      it_behaves_like 'immutable objects', '"#{a}"'
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
+
+      context 'when the frozen string literal comment is false' do
+        let(:prefix) { '# frozen_string_literal: false' }
+
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
     end
 
-    context 'when the frozen string literal comment is false' do
-      let(:prefix) { '# frozen_string_literal: false' }
+    context 'Ruby 2.7 or lower', :ruby27 do
+      context 'when the frozen string literal comment is missing' do
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
 
-      it_behaves_like 'mutable objects', '"#{a}"'
+      context 'when the frozen string literal comment is true' do
+        let(:prefix) { '# frozen_string_literal: true' }
+
+        it_behaves_like 'immutable objects', '"#{a}"'
+      end
+
+      context 'when the frozen string literal comment is false' do
+        let(:prefix) { '# frozen_string_literal: false' }
+
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
     end
   end
 
diff --git a/spec/rubocop/cop/style/redundant_freeze_spec.rb b/spec/rubocop/cop/style/redundant_freeze_spec.rb
index 9595dc434f2..70821af3df2 100644
--- a/spec/rubocop/cop/style/redundant_freeze_spec.rb
+++ b/spec/rubocop/cop/style/redundant_freeze_spec.rb
@@ -75,20 +75,40 @@
       end
     end
 
-    context 'when the frozen string literal comment is missing' do
-      it_behaves_like 'mutable objects', '"#{a}"'
-    end
+    context 'Ruby 3.0 or higher', :ruby30 do
+      context 'when the frozen string literal comment is missing' do
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
+
+      context 'when the frozen string literal comment is true' do
+        let(:prefix) { '# frozen_string_literal: true' }
 
-    context 'when the frozen string literal comment is true' do
-      let(:prefix) { '# frozen_string_literal: true' }
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
+
+      context 'when the frozen string literal comment is false' do
+        let(:prefix) { '# frozen_string_literal: false' }
 
-      it_behaves_like 'immutable objects', '"#{a}"'
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
     end
 
-    context 'when the frozen string literal comment is false' do
-      let(:prefix) { '# frozen_string_literal: false' }
+    context 'Ruby 2.7 or lower', :ruby27 do
+      context 'when the frozen string literal comment is missing' do
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
+
+      context 'when the frozen string literal comment is true' do
+        let(:prefix) { '# frozen_string_literal: true' }
+
+        it_behaves_like 'immutable objects', '"#{a}"'
+      end
+
+      context 'when the frozen string literal comment is false' do
+        let(:prefix) { '# frozen_string_literal: false' }
 
-      it_behaves_like 'mutable objects', '"#{a}"'
+        it_behaves_like 'mutable objects', '"#{a}"'
+      end
     end
 
     describe 'Regexp and Range literals' do