Delay Until Repeat Keyboard preference does not persist
MacBook Pro 14" /M1 Pro running MacOS 12.1. The Delay Until Repeat preference in the Keyboard System Preference keeps resetting on its own to a medium-length delay, which must be the default. I keep resetting it, and it keeps going back within a few hours. No change upon rebooting. I've considered trying to reset the NVRAM, but the info out there on doing this with an M1 doesn't exactly breed confidence; I don't see anything I'd consider definitive.
MacBook Pro (2020 and later)