With kernel 6.9.1, on TW build 0524, when my bluetooth keyboard (a keychron,
which uses the 'apple' driver) goes to sleep, I can quickly reconnect, by
pressing any key, wait one second, and I can start typing. This required me to
enable the 'FastConnectable' bluez option, but has worked well.

Upon the TW 0531 upgrade to 6.9.3, I found this no longer working. Connections
from the keyboard to the machine take several seconds to connect, if the
keyboard is untouched. If I press a key during this time, the lights flash
faster, and the sequence starts over. This can be prolonged indefinitely.

I have checked, and the device (intel AX200) firmware was not updated, and
booting to 6.9.1 worked, so the issue does not appear to be bluez (which was
also updated at the same time) or firmware, so it seems to be kernel.

This probably seems inconsequential, but with my disabilities, this dictated an
instant rollback to 0524, so I'm sorry that I couldn't get logs for this. I
tried to boot to the live image to see if I could collect any, but saw no
messages in journalctl other than the normal. I read other issues which
mentioned there might be a fix in 6.9.5, so waited for that before reporting.

Thanks for any help!