Hi. Volume is gone in Bullseye version, too.
In Multimedia > Pulse Audio Volume control : Speaker has red cross on the speaker in System Volume & Firefox Volume control. As a recall it has not been the case before. I ask you please instruct how remove the 2 red crosses. Using Terminal commands or whatever I need to do. (If not I must reinstall to Bionicpup Linux, ugly & w/sound, but extremely slow. A script slowed down Youtube, and if I turned it off Youtube did not work. Hacking or malware, maybe? I doubt Youtube would throw out a potential customer.) I will try remove and reinstall Pulse Audio Volume control. Gunnar