diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index e80e838..32d8396 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -200,8 +200,6 @@
 import com.android.systemui.unfold.updates.RotationChangeProvider;
 import com.android.wm.shell.shared.desktopmode.DesktopModeStatus;
 
-import kotlin.Unit;
-
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.ArrayList;
@@ -214,6 +212,8 @@
 import java.util.function.Predicate;
 import java.util.stream.Stream;
 
+import kotlin.Unit;
+
 public class QuickstepLauncher extends Launcher implements RecentsViewContainer,
         SystemShortcut.BubbleActivityStarter {
     private static final boolean TRACE_LAYOUTS =
@@ -271,7 +271,7 @@
         RecentsView<?,?> overviewPanel = getOverviewPanel();
         SystemUiProxy systemUiProxy = SystemUiProxy.INSTANCE.get(this);
         mSplitSelectStateController =
-                new SplitSelectStateController(this, mHandler, getStateManager(),
+                new SplitSelectStateController(this, getStateManager(),
                         getDepthController(), getStatsLogManager(),
                         systemUiProxy, RecentsModel.INSTANCE.get(this),
                         () -> onStateBack());
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index 0e63c12..9ac4141 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -122,9 +122,6 @@
     // Strong refs to runners which are cleared when the activity is destroyed
     private RemoteAnimationFactory mActivityLaunchAnimationRunner;
 
-    // For handling degenerate cases where starting an activity doesn't actually trigger the remote
-    // animation callback
-    private final Handler mHandler = new Handler();
     private final Runnable mAnimationStartTimeoutRunnable = this::onAnimationStartTimeout;
     private SplitSelectStateController mSplitSelectStateController;
     @Nullable
@@ -137,7 +134,7 @@
         SystemUiProxy systemUiProxy = SystemUiProxy.INSTANCE.get(this);
         // SplitSelectStateController needs to be created before setContentView()
         mSplitSelectStateController =
-                new SplitSelectStateController(this, mHandler, getStateManager(),
+                new SplitSelectStateController(this, getStateManager(),
                         null /* depthController */, getStatsLogManager(),
                         systemUiProxy, RecentsModel.INSTANCE.get(this),
                         null /*activityBackCallback*/);
diff --git a/quickstep/src/com/android/quickstep/fallback/window/RecentsWindowManager.kt b/quickstep/src/com/android/quickstep/fallback/window/RecentsWindowManager.kt
index dafa856..8ce61f5 100644
--- a/quickstep/src/com/android/quickstep/fallback/window/RecentsWindowManager.kt
+++ b/quickstep/src/com/android/quickstep/fallback/window/RecentsWindowManager.kt
@@ -22,7 +22,6 @@
 import android.content.Context
 import android.content.LocusId
 import android.os.Bundle
-import android.os.Handler
 import android.util.Log
 import android.view.KeyEvent
 import android.view.LayoutInflater
@@ -87,8 +86,7 @@
 
     protected var recentsView: FallbackRecentsView<RecentsWindowManager>? = null
     private val windowContext: Context = createWindowContext(TYPE_APPLICATION_OVERLAY, null)
-    private val windowManager: WindowManager =
-        windowContext.getSystemService(WindowManager::class.java)!!
+    private val windowManager: WindowManager = windowContext.getSystemService(WindowManager::class.java)!!
     private var layoutInflater: LayoutInflater = LayoutInflater.from(this).cloneInContext(this)
     private var stateManager: StateManager<RecentsState, RecentsWindowManager> =
         StateManager<RecentsState, RecentsWindowManager>(this, RecentsState.BG_LAUNCHER)
@@ -98,8 +96,6 @@
     private var windowView: View? = null
     private var actionsView: OverviewActionsView<*>? = null
     private var scrimView: ScrimView? = null
-    private val mHandler = Handler()
-
 
     private var isShown = false
 
@@ -201,9 +197,8 @@
         val splitSelectStateController =
             SplitSelectStateController(
                 this,
-                mHandler,
                 getStateManager(),
-                null /* depthController */,
+                null, /* depthController */
                 statsLogManager,
                 systemUiProxy,
                 RecentsModel.INSTANCE[this],
@@ -220,7 +215,7 @@
     }
 
     override fun canStartHomeSafely(): Boolean {
-        val overviewCommandHelper = tisBindHelper!!.overviewCommandHelper
+        val overviewCommandHelper = tisBindHelper.overviewCommandHelper
         return overviewCommandHelper == null || overviewCommandHelper.canStartHomeSafely()
     }
 
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index 1af12f1..fbeeef2 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -52,7 +52,6 @@
 import android.graphics.RectF;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
-import android.os.Handler;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.UserHandle;
@@ -116,7 +115,6 @@
     private static final String TAG = "SplitSelectStateCtor";
 
     private RecentsViewContainer mContainer;
-    private final Handler mHandler;
     private final RecentsModel mRecentTasksModel;
     @Nullable
     private Runnable mActivityBackCallback;
@@ -182,12 +180,11 @@
         }
     };
 
-    public SplitSelectStateController(RecentsViewContainer container, Handler handler,
+    public SplitSelectStateController(RecentsViewContainer container,
             StateManager stateManager, DepthController depthController,
             StatsLogManager statsLogManager, SystemUiProxy systemUiProxy, RecentsModel recentsModel,
             Runnable activityBackCallback) {
         mContainer = container;
-        mHandler = handler;
         mStatsLogManager = statsLogManager;
         mSystemUiProxy = systemUiProxy;
         mStateManager = stateManager;
diff --git a/quickstep/tests/multivalentTests/src/com/android/quickstep/AbsSwipeUpHandlerTestCase.java b/quickstep/tests/multivalentTests/src/com/android/quickstep/AbsSwipeUpHandlerTestCase.java
index 02426b5..87a7cda 100644
--- a/quickstep/tests/multivalentTests/src/com/android/quickstep/AbsSwipeUpHandlerTestCase.java
+++ b/quickstep/tests/multivalentTests/src/com/android/quickstep/AbsSwipeUpHandlerTestCase.java
@@ -73,10 +73,6 @@
 
     protected final Context mContext =
             InstrumentationRegistry.getInstrumentation().getTargetContext();
-    protected final RecentsWindowManager mRecentsWindowManager =
-            Flags.enableFallbackOverviewInWindow() ? new RecentsWindowManager(mContext) : null;
-    protected final TaskAnimationManager mTaskAnimationManager =
-            new TaskAnimationManager(mContext, mRecentsWindowManager);
     protected final RecentsAnimationDeviceState mRecentsAnimationDeviceState =
             new RecentsAnimationDeviceState(mContext, true);
     protected final InputConsumerController mInputConsumerController =
@@ -110,6 +106,9 @@
             /* minimizedHomeBounds= */ null,
             new Bundle());
 
+    protected RecentsWindowManager mRecentsWindowManager;
+    protected TaskAnimationManager mTaskAnimationManager;
+
     @Mock protected ACTIVITY_INTERFACE mActivityInterface;
     @Mock protected ActivityInitListener<?> mActivityInitListener;
     @Mock protected RecentsAnimationController mRecentsAnimationController;
@@ -124,6 +123,16 @@
     public final MockitoRule mMockitoRule = MockitoJUnit.rule();
 
     @Before
+    public void setUpTaskAnimationManager() {
+        runOnMainSync(() -> {
+            if(Flags.enableFallbackOverviewInWindow()){
+                mRecentsWindowManager = new RecentsWindowManager(mContext);
+            }
+            mTaskAnimationManager = new TaskAnimationManager(mContext, mRecentsWindowManager);
+        });
+    }
+
+    @Before
     public void setUpRunningTaskInfo() {
         mRunningTaskInfo.baseIntent = new Intent(Intent.ACTION_MAIN)
                 .addCategory(Intent.CATEGORY_HOME)
diff --git a/quickstep/tests/multivalentTests/src/com/android/quickstep/util/SplitSelectStateControllerTest.kt b/quickstep/tests/multivalentTests/src/com/android/quickstep/util/SplitSelectStateControllerTest.kt
index fc4c4f6..936e996 100644
--- a/quickstep/tests/multivalentTests/src/com/android/quickstep/util/SplitSelectStateControllerTest.kt
+++ b/quickstep/tests/multivalentTests/src/com/android/quickstep/util/SplitSelectStateControllerTest.kt
@@ -22,7 +22,6 @@
 import android.content.ComponentName
 import android.content.Intent
 import android.graphics.Rect
-import android.os.Handler
 import android.os.UserHandle
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import com.android.launcher3.LauncherState
@@ -40,7 +39,6 @@
 import com.android.quickstep.views.RecentsViewContainer
 import com.android.systemui.shared.recents.model.Task
 import com.android.wm.shell.shared.split.SplitScreenConstants.SNAP_TO_50_50
-import java.util.function.Consumer
 import org.junit.Assert.assertEquals
 import org.junit.Assert.assertFalse
 import org.junit.Assert.assertNull
@@ -54,6 +52,7 @@
 import org.mockito.kotlin.mock
 import org.mockito.kotlin.verify
 import org.mockito.kotlin.whenever
+import java.util.function.Consumer
 
 @RunWith(AndroidJUnit4::class)
 class SplitSelectStateControllerTest {
@@ -63,7 +62,6 @@
     private val statsLogManager: StatsLogManager = mock()
     private val statsLogger: StatsLogger = mock()
     private val stateManager: StateManager<LauncherState, StatefulActivity<LauncherState>> = mock()
-    private val handler: Handler = mock()
     private val context: RecentsViewContainer = mock()
     private val recentsModel: RecentsModel = mock()
     private val pendingIntent: PendingIntent = mock()
@@ -87,7 +85,6 @@
         splitSelectStateController =
             SplitSelectStateController(
                 context,
-                handler,
                 stateManager,
                 depthController,
                 statsLogManager,