How to rename Magic Keyboard 2 on Monterey
Annoying that one is no longer able to comment on not-so-old threads.
None of the suggested solutions worked on Monterey 12.0.1
A "Debug" option does not appear when Shift-Option clicking the Bluetooth icon in the Menubar.
And Option clicking the name of the offending keyboard just disconnects it from Bluetooth.
UNLESS . . .
One is logged in as an administrator.
Then a "Rename" option appears.
This information produced by many hours of my life I will never get back.
Mac mini 2018 or later