SUMMARY *** I would like to have activity-specific audio settings, like muting system audio in one activity while playing audio in another activity, or to mute audio in a specific app in one activity while playing audio in the same app in another activity (specifically Firefox). *** Debian 11 KDE Plasma Version: 5.20.5 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2
This seems reasonable to consider
Activities are currently being restructured a bit and we're undergoing a re-think of what exactly they should modify within the system; what you're asking is essentially to change a system setting (volume) when changing activities, and I think that right now it's better to see how this re-work goes on before tackling such issues, especially since very few people are working on this feature and this risks becoming an open feature request for a long time.