Yes it used to, but I don’t know when it stop working exactly. only thing am sure is its working before R4.2.1 rollout. maybe Mar 13, 2024. I remember it still working at the time that I write my first post on this forum. and reinstall QubesOS with default does not solve the problem.
However, Tor Project Release 13.0.13 at March 22, 2024. so it may be associated with Tor Browser Update.
Update: Its unlikely Tor Browser’s issue. Its likely sink issue. I found that other qube has sink appeared in playback tab when the qube start up with no apps running.