Homepod always streams from my iPhone instead of getting the music itself
I have a family subscription to Apple Music. My HomePods are connected to the internet. But whenever I ask a HomePod to play a song, it streams it from my iPhone. I cannot stop this behavior. If I want music that I started playing to keep playing for my family after I leave the house, I can't... it's coming from my phone. If I turn off my phone before requesting a song from the HomePod, then the HomePod will correctly stream the song from Apple Music. This is a ridiculous work-around.
How can I make my HomePod stream music from Apple by default, rather than trying to pull it from my iPhone?
HomePod mini