What do YOU use Ubuntu Studio for?
Pretty much everything.
But especially video and audio editing for teaching. Recording and spicing up lectures. OBS Studio into the zoom zoom (not my choice for video chat program, but there it is).
And also everything else: writing, coding, web, drawing, recording music.
Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.