This may be related to the recent pipewire/wireplumber changes - if everything seems to be working but there's no sound then possibly the media session service isn't running.
If you have pipewire-media-session installed, try systemctl --user start pipewire-media-session and see if that helps. If wireplumber, then systemctl --user start wireplumber.
Also check [Manual intervention required] Package conflict between pipewire-media-session & wireplumber