diff --git a/.ci/pitest-suppressions/pitest-coding-require-this-check-suppressions.xml b/.ci/pitest-suppressions/pitest-coding-require-this-check-suppressions.xml
index 53f76e8c6a7..654d074b208 100644
--- a/.ci/pitest-suppressions/pitest-coding-require-this-check-suppressions.xml
+++ b/.ci/pitest-suppressions/pitest-coding-require-this-check-suppressions.xml
@@ -8,4 +8,139 @@
     <description>removed conditional - replaced equality check with true</description>
     <lineContent>if (variableDeclarationFrame.getType() == FrameType.CLASS_FRAME) {</lineContent>
   </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>collectDeclarations</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.NakedReceiverMutator</mutator>
+    <description>replaced call to com/puppycrawl/tools/checkstyle/api/DetailAST::getFirstChild with receiver</description>
+    <lineContent>ast.getFirstChild().toString()));</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>endCollectingDeclarations</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.NonVoidMethodCallMutator</mutator>
+    <description>removed call to java/util/Map::put</description>
+    <lineContent>frames.put(ast, frameStack.poll());</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>endCollectingDeclarations</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.ArgumentPropagationMutator</mutator>
+    <description>replaced call to java/util/Map::put with argument</description>
+    <lineContent>frames.put(ast, frameStack.poll());</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>getCodeBlockDefinitionToken</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.NakedReceiverMutator</mutator>
+    <description>replaced call to com/puppycrawl/tools/checkstyle/api/DetailAST::getParent with receiver</description>
+    <lineContent>DetailAST parent = ident.getParent();</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>isInCompactConstructor</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.NakedReceiverMutator</mutator>
+    <description>replaced call to com/puppycrawl/tools/checkstyle/api/DetailAST::getParent with receiver</description>
+    <lineContent>DetailAST parent = ast.getParent();</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>isLambdaParameter</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.NakedReceiverMutator</mutator>
+    <description>replaced call to com/puppycrawl/tools/checkstyle/api/DetailAST::getParent with receiver</description>
+    <lineContent>for (parent = ast.getParent(); parent != null; parent = parent.getParent()) {</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>isReturnedVariable</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.NakedReceiverMutator</mutator>
+    <description>replaced call to com/puppycrawl/tools/checkstyle/api/DetailAST::findFirstToken with receiver</description>
+    <lineContent>final DetailAST blockStartToken = definitionToken.findFirstToken(TokenTypes.SLIST);</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>leaveToken</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_1</mutator>
+    <description>RemoveSwitch 1 mutation</description>
+    <lineContent>switch (ast.getType()) {</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>leaveToken</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_2</mutator>
+    <description>RemoveSwitch 2 mutation</description>
+    <lineContent>switch (ast.getType()) {</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>leaveToken</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_3</mutator>
+    <description>RemoveSwitch 3 mutation</description>
+    <lineContent>switch (ast.getType()) {</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>leaveToken</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_4</mutator>
+    <description>RemoveSwitch 4 mutation</description>
+    <lineContent>switch (ast.getType()) {</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>leaveToken</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_6</mutator>
+    <description>RemoveSwitch 6 mutation</description>
+    <lineContent>switch (ast.getType()) {</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>leaveToken</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_7</mutator>
+    <description>RemoveSwitch 7 mutation</description>
+    <lineContent>switch (ast.getType()) {</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>leaveToken</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_8</mutator>
+    <description>RemoveSwitch 8 mutation</description>
+    <lineContent>switch (ast.getType()) {</lineContent>
+  </mutation>
+
+  <mutation unstable="false">
+    <sourceFile>RequireThisCheck.java</sourceFile>
+    <mutatedClass>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</mutatedClass>
+    <mutatedMethod>processIdent</mutatedMethod>
+    <mutator>org.pitest.mutationtest.engine.gregor.mutators.experimental.RemoveSwitchMutator_1</mutator>
+    <description>RemoveSwitch 1 mutation</description>
+    <lineContent>switch (parentType) {</lineContent>
+  </mutation>
 </suppressedMutations>
diff --git a/pom.xml b/pom.xml
index 539ed842e1b..6462da65d36 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2795,15 +2795,33 @@
               <mutators>
                 <mutator>CONDITIONALS_BOUNDARY</mutator>
                 <mutator>CONSTRUCTOR_CALLS</mutator>
-                <mutator>FALSE_RETURNS</mutator>
                 <mutator>INCREMENTS</mutator>
+                <!-- Read reason of disablement at https://github.com/checkstyle/checkstyle/issues/11895 -->
+                <!-- <mutator>INLINE_CONSTS</mutator> -->
                 <mutator>INVERT_NEGS</mutator>
                 <mutator>MATH</mutator>
                 <mutator>NEGATE_CONDITIONALS</mutator>
-                <mutator>REMOVE_CONDITIONALS</mutator>
+                <mutator>NON_VOID_METHOD_CALLS</mutator>
+                <mutator>REMOVE_CONDITIONALS_EQUAL_ELSE</mutator>
+                <mutator>REMOVE_CONDITIONALS_EQUAL_IF</mutator>
+                <mutator>REMOVE_CONDITIONALS_ORDER_ELSE</mutator>
+                <mutator>REMOVE_CONDITIONALS_ORDER_IF</mutator>
                 <mutator>RETURN_VALS</mutator>
-                <mutator>TRUE_RETURNS</mutator>
                 <mutator>VOID_METHOD_CALLS</mutator>
+                <mutator>EXPERIMENTAL_ARGUMENT_PROPAGATION</mutator>
+                <mutator>EXPERIMENTAL_BIG_DECIMAL</mutator>
+                <mutator>EXPERIMENTAL_BIG_INTEGER</mutator>
+                <mutator>EXPERIMENTAL_MEMBER_VARIABLE</mutator>
+                <mutator>EXPERIMENTAL_NAKED_RECEIVER</mutator>
+                <mutator>REMOVE_INCREMENTS</mutator>
+                <mutator>EXPERIMENTAL_RETURN_VALUES_MUTATOR</mutator>
+                <mutator>EXPERIMENTAL_SWITCH</mutator>
+                <mutator>REMOVE_SWITCH</mutator>
+                <mutator>FALSE_RETURNS</mutator>
+                <mutator>TRUE_RETURNS</mutator>
+                <mutator>EMPTY_RETURNS</mutator>
+                <mutator>NULL_RETURNS</mutator>
+                <mutator>PRIMITIVE_RETURNS</mutator>
               </mutators>
               <targetClasses>
                 <param>com.puppycrawl.tools.checkstyle.checks.coding.RequireThisCheck</param>