[Google Pixel 4 XL Themes, Apps, and Mods] eg1122:
Ok looking at the log, I can see that it keeps crashing often with the same error. This is the error its logging.

12-10 21:40:56.901 8328 8328 E AndroidRuntime: FATAL EXCEPTION: main
12-10 21:40:56.901 8328 8328 E AndroidRuntime: Process: com.google.android.apps.nexuslauncher, PID: 8328
12-10 21:40:56.901 8328 8328 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.google.android.apps.nexuslauncher/com.google.android.apps.nexuslauncher.NexusLauncherActivity}: java.lang.SecurityException: Permission denial: reading from settings requires:android.permission.READ_DEVICE_CONFIG
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3271)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3410)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2017)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.os.Handler.dispatchMessage(Handler.java:107)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.os.Looper.loop(Looper.java:214)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.ActivityThread.main(ActivityThread.java:7397)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at java.lang.reflect.Method.invoke(Native Method)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:920)
[B]12-10 21:40:56.901 8328 8328 E AndroidRuntime: Caused by: java.lang.SecurityException: Permission denial: reading from settings requires:android.permission.READ_DEVICE_CONFIG[/B]
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.provider.DeviceConfig.enforceReadPermission(DeviceConfig.java:806)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.provider.DeviceConfig.addOnPropertiesChangedListener(DeviceConfig.java:623)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at com.android.launcher3.uioverrides.TogglableFlag.addChangeListener(SourceFile:2)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at com.android.launcher3.LauncherAppState.<init>(SourceFile:19)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at c.a.a.r.get(Unknown Source:2)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at com.android.launcher3.util.MainThreadInitializedObject.get(SourceFile:3)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at com.android.launcher3.LauncherAppState.getInstance(SourceFile:1)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at com.android.launcher3.Launcher.onCreate(SourceFile:4)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.Activity.performCreate(Activity.java:7824)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.Activity.performCreate(Activity.java:7813)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1307)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3246)
12-10 21:40:56.901 8328 8328 E AndroidRuntime:	... 11 more

I also see this towards the top

12-10 21:39:35.916 1316 1316 I PackageManager: Un-granting permission com.google.android.apps.nexuslauncher.permission.READ_SETTINGS from package com.teslacoilsw.launcher (protectionLevel=18 flags=0x38c83e44)
12-10 21:39:35.917 1316 1316 I PackageManager: Un-granting permission com.google.android.apps.nexuslauncher.permission.READ_SETTINGS from package ch.deletescape.lawnchair.ci (protectionLevel=18 flags=0x34cbbe46)
12-10 21:39:35.917 1316 1316 I PackageManager: Un-granting permission com.google.android.apps.nexuslauncher.permission.WRITE_SETTINGS from package ch.deletescape.lawnchair.ci (protectionLevel=18 flags=0x34cbbe46)

There is more of the same towards the top. Not sure how that affects the permissions of pixel launcher. Maybe try flashing the helper with some other launcher installed? I'll ask around to see if anyone has seen anything like this