hopefully this will help, if you are on macOS, don’t stress about the app crashing. don’t search for answers. just delete it. it will take a weight off your mind.
if you have an AirPlay compatible Sonos, it should be fine from Apple Music on laptop or phone.
if you have an older speaker that isn’t AirPlay, copy music to phone or a NAS and find it using the iOS app. the app even shows album art work! it’s almost like a fully functional minimal viable player!
don’t ever try to use the desktop app or web app, that will only get your hopes up, but it’s pointless. don’t get sucked into thinking you need to reset your router or your fridge etc. before you know it, you’ll be changing the locks on your doors in case they might be the problem….
:-)