I've been using Sonoma for almost a month now. Most things seem to work, but since installing Sonoma I've noticed the following bugs:
2) when using different monitors (as everyone who uses a studio or mac-mini obviously does), upon waking up the computer, the screen jerks around for under a minute until it settles down on a setting that it likes. Not very pleasant, and I had rarely seen something like this on a laptop with an additional screen before, but since Sonoma, it is every time on the studio, which never had it before, while the laptop seems better.
3) very frequent BlueTooth Disconnections/Reconnections (Apple MagicMouse, Trackpad & Keyboard), sometimes lasting for minutes where the computer is completely unresponsive. I've tried everything I can think of and it still happens.