@ravemir many thanks for further tests..
What I’m doing in the latest version is: getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
This should at least on phone keep the screen on when the app is in foreground.. but it may be ignored on Wear OS..
Also I’m taking a screen bright wake lock, but this is documented to get released when screen is turned off..
I guess I;m doing maximum I can on my end :(.. I do not have more ideas..
You are right Wear OS 4 is Android 13 and Wear OS 5 is Android 14, my bad..
I think this isn’t a Wear OS problem as other devices will keep vibrating even with screen off..