SUMMARY Currently each application, if they produce multiple audio streams, has independent control over each audio stream, this UX is not particularly great for a lot of folk, since it means adjusting the volume of the browser can sometimes mean adjusting 5+ sliders depending on how many audio streams a browser has, this also negatively effects apps that produce multiple audio streams through other means. STEPS TO REPRODUCE 1. Open firefox 2. Open two tabs 3. Play audio from both OBSERVED RESULT 2 separate audio stream controls EXPECTED RESULT Single control for the entire browser SOFTWARE/OS VERSIONS Windows: N/A macOS: N/A Linux/KDE Plasma: Arch (available in About System) KDE Plasma Version: 5.27.6 KDE Frameworks Version: 5.107.0 Qt Version: 5.15.10 ADDITIONAL INFORMATION It would be greatly appreciated, even if this was just a toggle in the sound settings.
Apps' streams are already grouped by app, but it sounds like you want isn't grouping, but rather a new UI element to adjust all the streams of a single app in unison. Seems reasonable.