You've been... thunderstruck!

I had to mask out pipewire and re-install pulseaudio to get the Vizio soundbar to work, though.

sudo apt install pulseaudio pulseaudio-module-bluetooth pulseaudio-utils pavucontrol
systemctl --user mask pipewire-pulse.service pipewire-pulse.socket wireplumber.service
systemctl --user unmask pulseaudio pulseaudio.service pulseaudio.socket
sudo reboot