Comment 8 for bug 1933771

This seems to be mostly solved in Ubuntu 21.10 (compared to 21.04. linux-firmware 1.201.3) for me now.

I do regularly (multiple times in a minute) get a hiccup which lasts a fraction of a second where there's no sound output. Not an issue for videocalls (other microphone than through the bluethooth headset to keep A2DP sink opposed to the crappy HFP).
That hiccup isn't ideal when listening to music though.