I don’t want to “blame” anybody and please don’t take it personally. I respect and appreciate all the work the CE team is putting into this, for free!
Nevertheless, there are / where definitely Bluetooth problems introduced in CE 9.2.0:
Same for CEC, but that can be a personal issue. But even for this, I can clearly see a difference in behaviour between CE 9.0.3 and CE 9.2.0 on the same hardware setup.