My one plus 8 pro got progressively worse with every software update.

The three most frustrating bugs were the first 5 or so seconds of video recording being laggy and poor, the camera opening very slowly so you'd miss the opportunity to take a picture of whatever it was you were trying to capture quickly, and worst of all, the Bluetooth volume randomly going to 100% and deafening me.

Oh and Google pay kept randomly not working, which was embarrassing.