Folks; using current elementary, I stumbled across some rather weird behaviour related to the default music player. As "Music" doesn't work for some of my use cases, I tried other players (such as byte from the App Store or lollypop from flatpak).
Generally, this seems to work. However, in the system tray in the "Volume" menu, I will keep seeing "Music" icon and navigation buttons on top of the menu most of the time. I remember having seen lollypop in there once after starting the laptop in the morning but I have no idea how to make lollypop / whatever-default-music-player permanently appear in there... Any ideas?