I did this with the old iPhone X. and of course did it with the new phone. No joy. This is an old problem apparently. I saw an earlier thread from March or April of this year with the same complaint and no smeolution there. I thought I was appending to that discussion, but a new thread opened up. I thought the iOS update last night might fix it, but it did not. The problem on the earlier thread was not isolated to one car. So it seemed to me that it was an Apple problem. I will check with my VW dealer for an update to the infotainment system.
When I first got the new phone I plugged it into the car and it played for 3 or 4 minutes. The music suddenly stopped and the CarPlay music screen was replaced with a menu that does not function. Does not scroll, does not back up and buttons are nonfunctioning. The Apple Music screen on the iphone is just white with no content. No problem going to Maps, Podcasts, etc.
We are also playing musical login. May not be Perseus06 anymore.