Cannot disable mute keyboard shortcut
Since upgrading to Ubuntu 22.04 with gnome-shell 42.5, something is muting my audio output when I hit the mute button on my headset to mute my microphone. I have checked in the keyboard shortcuts, and nothing was bound to 'Volume mute/unmute'. Binding a different key to 'Volume mute/unmute' doesn't seem to change it.
Using fuser tells me that /dev/input/event14 (the headset device) is open by systemd, acpid, systemd-logind and gnome-shell.