I understand if you need to downgrade. I am doing my best to stick with Android 12.
The Android System WebView issue is something else that has cropped up, causing lots of crashes or strange issues. I have a bug report open on this also
I notice it using Android Auto, plugged in via USB to my car radio. Things go wonky. I can simply go into Settings → Apps and then find Android System WebView and disable it then enable it. This fixes the Android Auto issues.
Unfortunately this does not fix the issues with Republic Wireless.