It’s also what your infrastructure is. If you’ve got loads of apple kit obviously Apple Music is just there, everywhere. Spotify is great if you’re on a mixed system/Android.
I think the Sonos app is one of the worse UIs I've ever had to use. I hate the thing. They can't make it worse surely. For music I just use the Apple app and only delve into the Sonos app for movie sound settings.
This looks like a thorough overhaul. My hope is that they make it better to navigate. My fear is that they ditch home libraries as a source completely.