For me this takes a slightly different form:
I get into my car. Bluetooth connects, phone continues playing music or podcast, without intervention. As far as I am concerned, this is a feature; it has always done that.
However, within 10 seconds or so, the phone will pause itself and then resume playing again.
If - when playback starts automatically (which I expect) - I immediately pause playback using my head unit screen, within 10 seconds or so, the phone will in-pause itself and start playing again > not expected. It does this only once. Until next time that pairing reconnects again.