And in theory it _can_ provide a really nice experience. For example I'm walking to my car listening to an audio book, the moment I start the car, BT is connecting to the phone and moves the audio playback from my AirPods to my car speaker without skipping a beat, its really impressive.
Additionally since I'm an Apple Music user, whenever I start the car, it just defaults to whatever's I've been listening to there, unless there was a book / podcast or even YouTube video playing before. Which is very often quite nice.
Now why apple just defaults to Apple Music, and not "your music player of choice a.k.a. Spotify" is questionable, and why the automatic play is also not configurable is beyond me.
Just wanted to give my 2c how this can lead to a good XP.