Comment 21 for bug 1897965

just wanted to add that I've just got an kde neon upgrade in which pipewire 0.3.15-0 has been installed. Since that moment there's no sound out of my soundcard. It is listed when doing a "cat /proc/asound/cards" but not in the system-tray icons and such.
Uninstalling pipewire is not an option, plasma-desktop and a bunch of other packages would be included in the uninstall.