Sound
From Achintya Rao’s Wiki
To enable output to multiple devices on Linux with pipewire, type the following into a terminal (via https://askubuntu.com/a/1382215):
pactl load-module module-combine-sink
To enable output to multiple devices on Linux with pipewire, type the following into a terminal (via https://askubuntu.com/a/1382215):
pactl load-module module-combine-sink