My favorite bluetooth issue is with MacOS. On my M1 Mac Mini, my Logitech MX keys and MX Master 3 mouse are not recognized after a reboot. So I have to attach a corded keyboard to my Mini to log in. Because when it goes to sleep after a reboot, it does not wake up for the logitech kit. Which is explicitly supporting MacOS.
Its not just linux where bluetooth sucks.
I opened a ticket with Apple on this, gave them my notes, and they still haven't done anything about this.
Bluetooth on linux sucks. As it does on MacOS. And windows.