homepod mini locked to Apple TV
I used to have a homepod mini which I could connect to from all my devices (iPhones, iPads etc). I recently got an apple TV 4K (output to a beamer) and had it connect to the mini when watching e.g. Netflix.
Since then, the two devices (Apple TV + mini) appear joined together as one icon in every single other device and when I e.g. want to stream Spotify to the mini it shows like it's playing but there's no sound. In the home app it shows like the Apple TV is in use instead.
Steaming to the mini now always means streaming to the Apple TV which is almost always in standby, hence no sound.
iPhone XS