Who I have the same questioned this topic

There is an issue with the latest update of the 'MyVerizon' app and the native phone app on Android 10: https://support.google.com/pixelphone/thread/13584442?hl=en

I can confirm that uninstalling the app resolves the issue.

Interestingly, I had no issues for the first 12 hours or so with Android 10 (I upgraded within hours after the release). The 'MyVerizon' app was updated about 12 hours after my upgrade to Android 10 ...

So it seems possible that this is a 'MyVerizon' app issue not an Android issue. Would be curious to know if anyone is having phone issues on Android 9 (or earlier) who have the 'MyVerizon' app installed ...

Any Tier III support folks reading this?