Don't be blue - debugging Bluetooth in macOS Monterey

Having noticed that Apple quietly removed Reset the Bluetooth module option: -

in macOS 12 Monterey, I was pleased to "discover" that there is the "nuclear" option of kill the Bluetooth stack, via: -

sudo pkill bluetoothd

before rebooting.

For the record, I have NOT yet tried this, but I trust the source of this tip, namely 9to5mac.com : -

Tips and tricks to fix Bluetooth connection issues on Mac

But, of course, YMMV

There's also this: -

Resolve Wi-Fi and Bluetooth issues caused by wireless interference

from Apple themselves