(Have to do as an answer as I don’t have the 50 Reputations yet to comment.)
Not sure how helpful this is but tangential problem(s). My USB headset (with mic) caused Firefox to stop working (!). Thunderbird worked fine. Saw problem reported in https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1951491 suggested unplugging the USB headset. (Mumbling to self: what’s Firefox got to do with a headset?)
Day or so later ran sudo firefox and received some quirky errors:
mkdir: cannot create directory '/run/user/0': Permission denied
[GFX1-]: vaapitest: ERROR
[GFX1-]: vaapitest: VA-API test failed: failed to initialise VAAPI connection.
Also saw some pulse errors which seemed to refer to pulseaudio.
Also had noted some references to directories which don’t exist here: /run/user/0 (subdir ‘0’ not exist) and /usr/run/1000/bus (subdir ‘bus’ not exist at the time of testing).
Noted later nothing was listed in Settings > Sound. I do not know when I lost audio output from the computer as I am using a Raspberry Pi for streaming music in to an amp and speakers.
I did have to reboot with the USB headset unplugged to get things to finally work. At first Firefox would only work via Terminal (better than nothing!) and a try or two later it worked via Favourites.
The USB Headset still is not detected: MPOW PA071A.
uname -r: 6.2.0-26-generic
cat /etc/os-release: Ubuntu 22.04.3 LTS
lsusb: ...Well guess that would do it: I don’t see being detected!
LIS, tangential information, hopefully somewhat helpful in tracking the error.