Comment 5 for bug 1929326

This appears to be related to a problem with the firmware for the Intel AX200 bluetooth adapter. After installing the linux-firmware package for Ubuntu 21.10, downloaded from https://launchpad.net/ubuntu/+source/linux-firmware/1.198, which contains an updated firmware for that adapter, the problem seems to have gone away. A full power cycle of the computer was required for the firmware to load, not a simple reboot.

I have not done extensive testing since installing the updated linux-firmware package 2 days ago, but I have not since been able to reproduce the problem.