In my car I'm often using the google assistant to start spotify and play music.
This is working, but when the next track play i.e. in a playlist, my car won't display the current track title (it still shows the old one). To exclude Android or the car, I tested it with Deezer, there it works.
Tested with: Sony Xperia XZ1 Compact (Android 8.0) / Google Pixel 2 (Android 8.1)