diff --git a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
index 08300e2..e871c25 100644
--- a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
@@ -25,8 +25,11 @@
 import static com.android.launcher3.taskbar.TaskbarViewController.ALPHA_INDEX_KEYGUARD;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_A11Y_BUTTON_CLICKABLE;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BACK_DISABLED;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_HOME_DISABLED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_IME_SHOWING;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_IME_SWITCHER_SHOWING;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 
 import android.animation.ObjectAnimator;
 import android.annotation.DrawableRes;
@@ -69,6 +72,9 @@
     private static final int FLAG_A11Y_VISIBLE = 1 << 3;
     private static final int FLAG_ONLY_BACK_FOR_BOUNCER_VISIBLE = 1 << 4;
     private static final int FLAG_KEYGUARD_VISIBLE = 1 << 5;
+    private static final int FLAG_DISABLE_HOME = 1 << 6;
+    private static final int FLAG_DISABLE_RECENTS = 1 << 7;
+    private static final int FLAG_DISABLE_BACK = 1 << 8;
 
     private static final int MASK_IME_SWITCHER_VISIBLE = FLAG_SWITCHER_SUPPORTED | FLAG_IME_VISIBLE;
 
@@ -169,7 +175,8 @@
         mBackButton = addButton(R.drawable.ic_sysbar_back, BUTTON_BACK,
                 mNavButtonContainer, mControllers.navButtonController, R.id.back);
         mPropertyHolders.add(new StatePropertyHolder(mBackButton,
-                flags -> (flags & FLAG_IME_VISIBLE) == 0));
+                flags -> (flags & FLAG_IME_VISIBLE) == 0 &&
+                        (flags & FLAG_DISABLE_BACK) == 0));
         // Hide when keyguard is showing, show when bouncer is showing
         mPropertyHolders.add(new StatePropertyHolder(mBackButton,
                 flags -> (flags & FLAG_KEYGUARD_VISIBLE) == 0 ||
@@ -180,12 +187,14 @@
                 navButtonController, R.id.home);
         mPropertyHolders.add(new StatePropertyHolder(homeButton,
                 flags -> (flags & FLAG_IME_VISIBLE) == 0 &&
-                        (flags & FLAG_KEYGUARD_VISIBLE) == 0));
+                        (flags & FLAG_KEYGUARD_VISIBLE) == 0 &&
+                        (flags & FLAG_DISABLE_HOME) == 0));
         View recentsButton = addButton(R.drawable.ic_sysbar_recent, BUTTON_RECENTS,
                 navContainer, navButtonController, R.id.recent_apps);
         mPropertyHolders.add(new StatePropertyHolder(recentsButton,
                 flags -> (flags & FLAG_IME_VISIBLE) == 0 &&
-                        (flags & FLAG_KEYGUARD_VISIBLE) == 0));
+                        (flags & FLAG_KEYGUARD_VISIBLE) == 0 &&
+                        (flags & FLAG_DISABLE_RECENTS) == 0));
 
         // A11y button
         mA11yButton = addButton(R.drawable.ic_sysbar_accessibility_button, BUTTON_A11Y,
@@ -202,6 +211,12 @@
         boolean a11yVisible = (systemUiStateFlags & SYSUI_STATE_A11Y_BUTTON_CLICKABLE) != 0;
         boolean a11yLongClickable =
                 (systemUiStateFlags & SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE) != 0;
+        boolean isHomeDisabled =
+                (systemUiStateFlags & SYSUI_STATE_HOME_DISABLED) != 0;
+        boolean isRecentsDisabled =
+                (systemUiStateFlags & SYSUI_STATE_OVERVIEW_DISABLED) != 0;
+        boolean isBackDisabled =
+                (systemUiStateFlags & SYSUI_STATE_BACK_DISABLED) != 0;
 
         if (!forceUpdate && systemUiStateFlags == mSysuiStateFlags) {
             return;
@@ -211,6 +226,10 @@
         updateStateForFlag(FLAG_IME_VISIBLE, isImeVisible);
         updateStateForFlag(FLAG_SWITCHER_SUPPORTED, isImeSwitcherShowing);
         updateStateForFlag(FLAG_A11Y_VISIBLE, a11yVisible);
+        updateStateForFlag(FLAG_DISABLE_HOME, isHomeDisabled);
+        updateStateForFlag(FLAG_DISABLE_RECENTS, isRecentsDisabled);
+        updateStateForFlag(FLAG_DISABLE_BACK, isBackDisabled);
+
         if (mA11yButton != null) {
             // Only used in 3 button
             mA11yButton.setLongClickable(a11yLongClickable);
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 5b9bd31..ca574e6 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -36,7 +36,6 @@
 import android.view.Display;
 import android.view.Gravity;
 import android.view.LayoutInflater;
-import android.view.RoundedCorner;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.FrameLayout;
@@ -84,7 +83,6 @@
     private final TaskbarControllers mControllers;
 
     private final WindowManager mWindowManager;
-    private final RoundedCorner mLeftCorner, mRightCorner;
     private WindowManager.LayoutParams mWindowLayoutParams;
     private boolean mIsFullscreen;
     // The size we should return to when we call setTaskbarWindowFullscreen(false)
@@ -138,12 +136,10 @@
                 ? windowContext.getApplicationContext()
                 : windowContext.getApplicationContext().createDisplayContext(display);
         mWindowManager = c.getSystemService(WindowManager.class);
-        mLeftCorner = display.getRoundedCorner(RoundedCorner.POSITION_BOTTOM_LEFT);
-        mRightCorner = display.getRoundedCorner(RoundedCorner.POSITION_BOTTOM_RIGHT);
     }
 
     public void init() {
-        mLastRequestedNonFullscreenHeight = getDefaultTaskbarWindowHeight();
+        mLastRequestedNonFullscreenHeight = mDeviceProfile.taskbarSize;
         mWindowLayoutParams = new WindowManager.LayoutParams(
                 MATCH_PARENT,
                 mLastRequestedNonFullscreenHeight,
@@ -173,14 +169,6 @@
         return mNavMode == Mode.THREE_BUTTONS;
     }
 
-    public RoundedCorner getLeftCorner() {
-        return mLeftCorner;
-    }
-
-    public RoundedCorner getRightCorner() {
-        return mRightCorner;
-    }
-
     @Override
     public LayoutInflater getLayoutInflater() {
         return mLayoutInflater;
@@ -247,7 +235,6 @@
             return;
         }
         mControllers.rotationButtonController.onDisable2FlagChanged(state2);
-        mControllers.taskbarKeyguardController.disableNavbarElements(state1, state2);
     }
 
     public void onSystemBarAttributesChanged(int displayId, int behavior) {
@@ -262,12 +249,8 @@
         setTaskbarWindowHeight(fullscreen ? MATCH_PARENT : mLastRequestedNonFullscreenHeight);
     }
 
-    public boolean isTaskbarWindowFullscreen() {
-        return mIsFullscreen;
-    }
-
     /**
-     * Updates the TaskbarContainer height (pass {@link #getDefaultTaskbarWindowHeight()} to reset).
+     * Updates the TaskbarContainer height (pass deviceProfile.taskbarSize to reset).
      */
     public void setTaskbarWindowHeight(int height) {
         if (mWindowLayoutParams.height == height || mIsDestroyed) {
@@ -287,14 +270,6 @@
         mWindowManager.updateViewLayout(mDragLayer, mWindowLayoutParams);
     }
 
-    /**
-     * Returns the default height of the window, including the static corner radii above taskbar.
-     */
-    public int getDefaultTaskbarWindowHeight() {
-        return mDeviceProfile.taskbarSize
-                + Math.max(mLeftCorner.getRadius(), mRightCorner.getRadius());
-    }
-
     protected void onTaskbarIconClicked(View view) {
         Object tag = view.getTag();
         if (tag instanceof Task) {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayer.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayer.java
index 0848c35..cd1baf7 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayer.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayer.java
@@ -18,7 +18,6 @@
 import android.content.Context;
 import android.graphics.Canvas;
 import android.graphics.Paint;
-import android.graphics.Path;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
@@ -41,12 +40,9 @@
 public class TaskbarDragLayer extends BaseDragLayer<TaskbarActivityContext> {
 
     private final Paint mTaskbarBackgroundPaint;
-    private final Path mInvertedLeftCornerPath, mInvertedRightCornerPath;
     private final OnComputeInsetsListener mTaskbarInsetsComputer = this::onComputeTaskbarInsets;
 
-    // Initialized in init.
     private TaskbarDragLayerController.TaskbarDragLayerCallbacks mControllerCallbacks;
-    private float mLeftCornerRadius, mRightCornerRadius;
 
     private float mTaskbarBackgroundOffset;
 
@@ -69,32 +65,10 @@
         mTaskbarBackgroundPaint = new Paint();
         mTaskbarBackgroundPaint.setColor(getResources().getColor(R.color.taskbar_background));
         mTaskbarBackgroundPaint.setAlpha(0);
-        mTaskbarBackgroundPaint.setFlags(Paint.ANTI_ALIAS_FLAG);
-        mTaskbarBackgroundPaint.setStyle(Paint.Style.FILL);
-
-        // Will be set in init(), but this ensures they are always non-null.
-        mInvertedLeftCornerPath = new Path();
-        mInvertedRightCornerPath = new Path();
     }
 
     public void init(TaskbarDragLayerController.TaskbarDragLayerCallbacks callbacks) {
         mControllerCallbacks = callbacks;
-
-        // Create the paths for the inverted rounded corners above the taskbar. Start with a filled
-        // square, and then subtracting out a circle from the appropriate corner.
-        mLeftCornerRadius = mActivity.getLeftCorner().getRadius();
-        mRightCornerRadius = mActivity.getRightCorner().getRadius();
-        Path square = new Path();
-        square.addRect(0, 0, mLeftCornerRadius, mLeftCornerRadius, Path.Direction.CW);
-        Path circle = new Path();
-        circle.addCircle(mLeftCornerRadius, 0, mLeftCornerRadius, Path.Direction.CW);
-        mInvertedLeftCornerPath.op(square, circle, Path.Op.DIFFERENCE);
-        square.reset();
-        square.addRect(0, 0, mRightCornerRadius, mRightCornerRadius, Path.Direction.CW);
-        circle.reset();
-        circle.addCircle(0, 0, mRightCornerRadius, Path.Direction.CW);
-        mInvertedRightCornerPath.op(square, circle, Path.Op.DIFFERENCE);
-
         recreateControllers();
     }
 
@@ -147,20 +121,8 @@
     protected void dispatchDraw(Canvas canvas) {
         float backgroundHeight = mControllerCallbacks.getTaskbarBackgroundHeight()
                 * (1f - mTaskbarBackgroundOffset);
-        canvas.save();
-        canvas.translate(0, canvas.getHeight() - backgroundHeight);
-
-        // Draw the background behind taskbar content.
-        canvas.drawRect(0, 0, canvas.getWidth(), backgroundHeight, mTaskbarBackgroundPaint);
-
-        // Draw the inverted rounded corners above the taskbar.
-        canvas.translate(0, -mLeftCornerRadius);
-        canvas.drawPath(mInvertedLeftCornerPath, mTaskbarBackgroundPaint);
-        canvas.translate(0, mLeftCornerRadius);
-        canvas.translate(canvas.getWidth() - mRightCornerRadius, -mRightCornerRadius);
-        canvas.drawPath(mInvertedRightCornerPath, mTaskbarBackgroundPaint);
-
-        canvas.restore();
+        canvas.drawRect(0, canvas.getHeight() - backgroundHeight, canvas.getWidth(),
+                canvas.getHeight(), mTaskbarBackgroundPaint);
         super.dispatchDraw(canvas);
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
index 0afa480..14150b9 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragLayerController.java
@@ -16,7 +16,6 @@
 package com.android.launcher3.taskbar;
 
 import static com.android.launcher3.AbstractFloatingView.TYPE_ALL;
-import static com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo.TOUCHABLE_INSETS_CONTENT;
 import static com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo.TOUCHABLE_INSETS_FRAME;
 import static com.android.systemui.shared.system.ViewTreeObserverWrapper.InsetsInfo.TOUCHABLE_INSETS_REGION;
 
@@ -133,14 +132,13 @@
                 // Let touches pass through us.
                 insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
             } else if (mControllers.navbarButtonsViewController.isImeVisible()) {
-                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_CONTENT);
+                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_FRAME);
             } else if (!mControllers.uiController.isTaskbarTouchable()) {
                 // Let touches pass through us.
                 insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
             } else if (mControllers.taskbarViewController.areIconsVisible()) {
                 // Buttons are visible, take over the full taskbar area
-                insetsInfo.setTouchableInsets(mActivity.isTaskbarWindowFullscreen()
-                        ? TOUCHABLE_INSETS_FRAME : TOUCHABLE_INSETS_CONTENT);
+                insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_FRAME);
             } else {
                 insetsInfo.setTouchableInsets(TOUCHABLE_INSETS_REGION);
             }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarKeyguardController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarKeyguardController.java
index a2039b6..834cd9c 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarKeyguardController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarKeyguardController.java
@@ -1,7 +1,10 @@
 package com.android.launcher3.taskbar;
 
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BACK_DISABLED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_BOUNCER_SHOWING;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_DEVICE_DOZING;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_HOME_DISABLED;
+import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING;
 
 import android.app.KeyguardManager;
@@ -9,7 +12,6 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.view.View;
 
 /**
  * Controller for managing keyguard state for taskbar
@@ -17,10 +19,11 @@
 public class TaskbarKeyguardController {
 
     private static final int KEYGUARD_SYSUI_FLAGS = SYSUI_STATE_BOUNCER_SHOWING |
-            SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING | SYSUI_STATE_DEVICE_DOZING;
+            SYSUI_STATE_STATUS_BAR_KEYGUARD_SHOWING | SYSUI_STATE_DEVICE_DOZING |
+            SYSUI_STATE_OVERVIEW_DISABLED | SYSUI_STATE_HOME_DISABLED |
+            SYSUI_STATE_BACK_DISABLED;
 
     private final TaskbarActivityContext mContext;
-    private int mDisabledNavIcons;
     private int mKeyguardSysuiFlags;
     private boolean mBouncerShowing;
     private NavbarButtonsViewController mNavbarButtonsViewController;
@@ -70,22 +73,13 @@
         mIsScreenOff = false;
     }
 
-    public void disableNavbarElements(int state1, int state2) {
-        if (mDisabledNavIcons == state1) {
-            // no change
-            return;
-        }
-        mDisabledNavIcons = state1;
-        updateIconsForBouncer();
-    }
-
     /**
      * Hides/shows taskbar when keyguard is up
      */
     private void updateIconsForBouncer() {
-        boolean disableBack = (mDisabledNavIcons & View.STATUS_BAR_DISABLE_BACK) != 0;
-        boolean disableRecent = (mDisabledNavIcons & View.STATUS_BAR_DISABLE_RECENT) != 0;
-        boolean disableHome = (mDisabledNavIcons & View.STATUS_BAR_DISABLE_HOME) != 0;
+        boolean disableBack = (mKeyguardSysuiFlags & SYSUI_STATE_BACK_DISABLED) != 0;
+        boolean disableRecent = (mKeyguardSysuiFlags & SYSUI_STATE_OVERVIEW_DISABLED) != 0;
+        boolean disableHome = (mKeyguardSysuiFlags & SYSUI_STATE_HOME_DISABLED) != 0;
         boolean onlyBackEnabled = !disableBack && disableRecent && disableHome;
 
         boolean showBackForBouncer = onlyBackEnabled &&
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 1882762..6b95f08 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -165,9 +165,8 @@
         int offsetY = launcherDp.getTaskbarOffsetY();
         setter.setFloat(mTaskbarIconTranslationYForHome, VALUE, -offsetY, LINEAR);
 
-        int collapsedHeight = mActivity.getDefaultTaskbarWindowHeight();
-        int expandedHeight = Math.max(collapsedHeight,
-                mActivity.getDeviceProfile().taskbarSize + offsetY);
+        int collapsedHeight = mActivity.getDeviceProfile().taskbarSize;
+        int expandedHeight = collapsedHeight + offsetY;
         setter.addOnFrameListener(anim -> mActivity.setTaskbarWindowHeight(
                 anim.getAnimatedFraction() > 0 ? expandedHeight : collapsedHeight));