Steps to reproduce: 1. Install spotify from flatpak 2. Install ungoogled-chromium from flatpak 3. Launch both applications 4. make sure there is no media playing in the ungoogled-chromium browser 5. play a song in Spotify observed result: the sound icon shows for both spotify and ungoogled-chromium and clicking the browser's icon mutes sound coming from the spotify app. in fact the icons seem to be in sync. no idea if this is flatpak specific. Operating System: Arch Linux KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.106.0 Qt Version: 5.15.9 Kernel Version: 6.3.2-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor Memory: 31.3 GiB of RAM Graphics Processor: AMD Radeon RX 6800 XT
*** This bug has been marked as a duplicate of bug 463356 ***