I don’t understand why such a simple concept: “I want to play the music I own or subscribe to on the speakers attached to my WiFi” is so hard to navigate in your app.
Between your weird descriptions of your Services, your Favorites and Your Sources, it is difficult to get get a simple song on Apple Music that I’m signed in to play on the selected speakers (2 out of 10 that show up on the Sources).
Your app has sucked for years. Can you hire a good usability person, or your most ticked off user, to just come in and help you to redesign this before you go down the Crappy App road again?