Prior to that BT devices would just drop the connection, AFAICT.

Bi-directional file transfer has never worked properly.

And that's only BT…

IDK what's actually that bad about the BT menu UI though? The recent UX changes on notifications have been bad, though. Especially where sometimes clicking the X doesn't dismiss the notification. (There's some bait&switch b/c there's like multiple notifications stacked up… or something.) And that (for a while now) Calendar hasn't reliably notified me, which has been great, as it results in lateness to meetings, since there's no longer an office mate to say "hey, it's time".