That is the copy/paste menu in the XDA Labs app. I'm not sure whether it's a bug of the app or ROM but it wasn't a bug two-three builds ago. I'm not using any theme, it's the default Poco theme. Night mode in Developer options is turned to Automatic. The build was a clean install from wiped phone.
I have an issue with a bluetooth device and from their tech support they've told me to check the Android Notifications setup to see if the device its allowed to receive notifications or not. The steps given to reach such menu are the following:
open the Android settings menu, select sound and...