I’m importing my YouTube Music library/playlists to see how the radio and discovery on Apple Music compares. I have mixed opinions of YouTube Music here: their curated stations are usually nice for discovery for me, but I haven’t really ever loved their radio. I’ve heard Apple Music is better; we’ll see!
So far casting is actually… reliable though?? Like YouTube Music just craps itself trying to cast to speaker groups in my house, but Apple Music works perfectly so far.