diff --git a/packages/flutter/lib/src/material/range_slider.dart b/packages/flutter/lib/src/material/range_slider.dart
index 9496174caeb..31ca2db1672 100644
--- a/packages/flutter/lib/src/material/range_slider.dart
+++ b/packages/flutter/lib/src/material/range_slider.dart
@@ -889,9 +889,9 @@ class _RenderRangeSlider extends RenderBox with RelayoutWhenSystemFontsChangeMix
   static const Duration _minimumInteractionTime = Duration(milliseconds: 500);
 
   final _RangeSliderState _state;
-  late Animation<double> _overlayAnimation;
-  late Animation<double> _valueIndicatorAnimation;
-  late Animation<double> _enableAnimation;
+  late CurvedAnimation _overlayAnimation;
+  late CurvedAnimation _valueIndicatorAnimation;
+  late CurvedAnimation _enableAnimation;
   final TextPainter _startLabelPainter = TextPainter();
   final TextPainter _endLabelPainter = TextPainter();
   late HorizontalDragGestureRecognizer _drag;
@@ -1185,6 +1185,9 @@ class _RenderRangeSlider extends RenderBox with RelayoutWhenSystemFontsChangeMix
     _tap.dispose();
     _startLabelPainter.dispose();
     _endLabelPainter.dispose();
+    _enableAnimation.dispose();
+    _valueIndicatorAnimation.dispose();
+    _overlayAnimation.dispose();
     super.dispose();
   }
 
diff --git a/packages/flutter/lib/src/material/scaffold.dart b/packages/flutter/lib/src/material/scaffold.dart
index 3d8680e634f..cdc6c02cf74 100644
--- a/packages/flutter/lib/src/material/scaffold.dart
+++ b/packages/flutter/lib/src/material/scaffold.dart
@@ -1322,11 +1322,11 @@ class _FloatingActionButtonTransitionState extends State<_FloatingActionButtonTr
   // Controls the previous widget.child as it exits.
   late AnimationController _previousController;
   late Animation<double> _previousScaleAnimation;
-  late Animation<double> _previousRotationAnimation;
+  late TrainHoppingAnimation _previousRotationAnimation;
   // The animations to run, considering the widget's fabMoveAnimation and the current/previous entrance/exit animations.
   late Animation<double> _currentScaleAnimation;
   late Animation<double> _extendedCurrentScaleAnimation;
-  late Animation<double> _currentRotationAnimation;
+  late TrainHoppingAnimation _currentRotationAnimation;
   Widget? _previousChild;
 
   @override
@@ -1353,6 +1353,7 @@ class _FloatingActionButtonTransitionState extends State<_FloatingActionButtonTr
   @override
   void dispose() {
     _previousController.dispose();
+    _disposeAnimations();
     super.dispose();
   }
 
@@ -1360,6 +1361,7 @@ class _FloatingActionButtonTransitionState extends State<_FloatingActionButtonTr
   void didUpdateWidget(_FloatingActionButtonTransition oldWidget) {
     super.didUpdateWidget(oldWidget);
     if (oldWidget.fabMotionAnimator != widget.fabMotionAnimator || oldWidget.fabMoveAnimation != widget.fabMoveAnimation) {
+      _disposeAnimations();
       // Get the right scale and rotation animations to use for this widget.
       _updateAnimations();
     }
@@ -1395,6 +1397,11 @@ class _FloatingActionButtonTransitionState extends State<_FloatingActionButtonTr
     end: 1.0,
   ).chain(CurveTween(curve: Curves.easeIn));
 
+  void _disposeAnimations() {
+    _previousRotationAnimation.dispose();
+    _currentRotationAnimation.dispose();
+  }
+
   void _updateAnimations() {
     // Get the animations for exit and entrance.
     final CurvedAnimation previousExitScaleAnimation = CurvedAnimation(
diff --git a/packages/flutter/lib/src/widgets/overscroll_indicator.dart b/packages/flutter/lib/src/widgets/overscroll_indicator.dart
index 42025034069..37f96e3ff72 100644
--- a/packages/flutter/lib/src/widgets/overscroll_indicator.dart
+++ b/packages/flutter/lib/src/widgets/overscroll_indicator.dart
@@ -812,15 +812,16 @@ class _StretchController extends ChangeNotifier {
     }
     _stretchController = AnimationController(vsync: vsync)
       ..addStatusListener(_changePhase);
-    final Animation<double> decelerator = CurvedAnimation(
+    _decelerator = CurvedAnimation(
       parent: _stretchController,
       curve: Curves.decelerate,
     )..addListener(notifyListeners);
-    _stretchSize = decelerator.drive(_stretchSizeTween);
+    _stretchSize = _decelerator.drive(_stretchSizeTween);
   }
 
   late final AnimationController _stretchController;
   late final Animation<double> _stretchSize;
+  late final CurvedAnimation _decelerator;
   final Tween<double> _stretchSizeTween = Tween<double>(begin: 0.0, end: 0.0);
   _StretchState _state = _StretchState.idle;
 
@@ -923,6 +924,7 @@ class _StretchController extends ChangeNotifier {
   @override
   void dispose() {
     _stretchController.dispose();
+    _decelerator.dispose();
     super.dispose();
   }
 
diff --git a/packages/flutter/test/animation/live_binding_test.dart b/packages/flutter/test/animation/live_binding_test.dart
index 33692e66eed..197175e5aa7 100644
--- a/packages/flutter/test/animation/live_binding_test.dart
+++ b/packages/flutter/test/animation/live_binding_test.dart
@@ -9,7 +9,6 @@ library;
 
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 void main() {
   /*
@@ -78,10 +77,7 @@ void main() {
     // Currently skipped due to daily flake: https://github.com/flutter/flutter/issues/87588
   }, skip: true); // Typically skip: isBrowser https://github.com/flutter/flutter/issues/42767
 
-  testWidgets('Should show event indicator for pointer events with setSurfaceSize',
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
-  experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
-  (WidgetTester tester) async {
+  testWidgets('Should show event indicator for pointer events with setSurfaceSize', (WidgetTester tester) async {
     final AnimationSheetBuilder animationSheet = AnimationSheetBuilder(frameSize: const Size(200, 200), allLayers: true);
     addTearDown(animationSheet.dispose);
     final List<Offset> taps = <Offset>[];
diff --git a/packages/flutter/test/cupertino/refresh_test.dart b/packages/flutter/test/cupertino/refresh_test.dart
index fb66030fe7d..5601753a471 100644
--- a/packages/flutter/test/cupertino/refresh_test.dart
+++ b/packages/flutter/test/cupertino/refresh_test.dart
@@ -10,7 +10,6 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 void main() {
   late FakeBuilder mockHelper;
@@ -35,10 +34,7 @@ void main() {
   }
 
   void uiTestGroup() {
-    testWidgets("doesn't invoke anything without user interaction",
-    // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
-    experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
-    (WidgetTester tester) async {
+    testWidgets("doesn't invoke anything without user interaction", (WidgetTester tester) async {
       await tester.pumpWidget(
         CupertinoApp(
           home: CustomScrollView(
diff --git a/packages/flutter/test/painting/decoration_image_lerp_test.dart b/packages/flutter/test/painting/decoration_image_lerp_test.dart
index fbdc03918f5..8586abbd9ad 100644
--- a/packages/flutter/test/painting/decoration_image_lerp_test.dart
+++ b/packages/flutter/test/painting/decoration_image_lerp_test.dart
@@ -18,7 +18,7 @@ import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 void main() {
   testWidgets('ImageDecoration.lerp',
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
+  // TODO(polina-c): make sure images are disposed, https://github.com/flutter/flutter/issues/141388 [leaks-to-clean]
   experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
   (WidgetTester tester) async {
     final MemoryImage green = MemoryImage(Uint8List.fromList(<int>[
@@ -195,7 +195,7 @@ void main() {
   }, skip: kIsWeb); // TODO(ianh): https://github.com/flutter/flutter/issues/130612, https://github.com/flutter/flutter/issues/130609
 
   testWidgets('ImageDecoration.lerp',
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
+  // TODO(polina-c): make sure images are disposed, https://github.com/flutter/flutter/issues/141388 [leaks-to-clean]
   experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
   (WidgetTester tester) async {
     final MemoryImage cmyk = MemoryImage(Uint8List.fromList(<int>[
@@ -416,7 +416,7 @@ void main() {
   }, skip: kIsWeb); // TODO(ianh): https://github.com/flutter/flutter/issues/130612, https://github.com/flutter/flutter/issues/130609
 
   testWidgets('ImageDecoration.lerp with colored background',
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
+  // TODO(polina-c): make sure images are disposed, https://github.com/flutter/flutter/issues/141388 [leaks-to-clean]
   experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
   (WidgetTester tester) async {
     final MemoryImage cmyk = MemoryImage(Uint8List.fromList(<int>[
diff --git a/packages/flutter/test/painting/image_stream_test.dart b/packages/flutter/test/painting/image_stream_test.dart
index e29cd450527..ab1f51c7215 100644
--- a/packages/flutter/test/painting/image_stream_test.dart
+++ b/packages/flutter/test/painting/image_stream_test.dart
@@ -78,7 +78,7 @@ class FakeEventReportingImageStreamCompleter extends ImageStreamCompleter {
 }
 
 void main() {
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
+  // TODO(polina-c): make sure images are disposed, https://github.com/flutter/flutter/issues/141388 [leaks-to-clean]
   LeakTesting.settings = LeakTesting.settings.withIgnoredAll();
 
   late Image image20x10;
diff --git a/packages/flutter/test/semantics/semantics_elevation_test.dart b/packages/flutter/test/semantics/semantics_elevation_test.dart
index b9d37d0bc60..24c6918af2b 100644
--- a/packages/flutter/test/semantics/semantics_elevation_test.dart
+++ b/packages/flutter/test/semantics/semantics_elevation_test.dart
@@ -5,15 +5,11 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import '../widgets/semantics_tester.dart';
 
 void main() {
-  testWidgets('SemanticsNodes overlapping in z',
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
-  experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
-  (WidgetTester tester) async {
+  testWidgets('SemanticsNodes overlapping in z', (WidgetTester tester) async {
     // Cards are semantic boundaries that always own their own SemanticNode,
     // PhysicalModels merge their semantics information into parent.
     //
diff --git a/packages/flutter/test/widgets/basic_test.dart b/packages/flutter/test/widgets/basic_test.dart
index 73eb1c16447..567f2e37bf3 100644
--- a/packages/flutter/test/widgets/basic_test.dart
+++ b/packages/flutter/test/widgets/basic_test.dart
@@ -15,16 +15,12 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:leak_tracker_flutter_testing/leak_tracker_flutter_testing.dart';
 
 import 'semantics_tester.dart';
 
 void main() {
   group('RawImage', () {
-    testWidgets('properties',
-  // TODO(polina-c): clean up leaks, https://github.com/flutter/flutter/issues/134787 [leaks-to-clean]
-    experimentalLeakTesting: LeakTesting.settings.withIgnoredAll(),
-    (WidgetTester tester) async {
+    testWidgets('properties', (WidgetTester tester) async {
       final ui.Image image1 = (await tester.runAsync<ui.Image>(() => createTestImage()))!;
 
       await tester.pumpWidget(