I would like to report the bug i had with pip. I'm using MI 9T Pro (K20Pro) with the Muiu (eu)11.0.3 stable. If i set a destination o google maps and go to another app, when I call Maps again from the notification area it gets black and frozen screen, I realised that disabling PIP permission to Maps fixed it. I didnt like the Pip function either. So that's my report , i hope it helps.