comin from 1.21 I upgraded to 2.0 an now the device is almost unusable. At after login (PIN) after startup a app is blocking access with blank screen until it crashes. Also settings app crashes instantly after opening.
i did also a fully reset to default in hope to only have a dirty upgrade. but same behavior with a clean install on eOS2.1.
This is very useful on update (I use it on most occasions, as it seems to help keep the phone from slowdowns). It has an explanatory Help page within the app, the standard process is to clear Cache of selected apps, and I select all.
However within the app Settings In RED is “Allow Clear data – Use at your own risk”.
Please use Cache Cleaner more than once to experiment with the standard method.
Edit I first worked though the following in Android 13 (T) – checking on Android 11 (R), the names are not identical.
With a little practice (and dry runs) it is possible to Open Cache Cleaner > Open Settings > Toggle on Allow Clear data > return to main page > Select Clean cache of system apps > Scroll down to find Settings and / or
variants of com.android.settings* for instance (perhaps at a second run)