I’m away from home on a holiday for next few days but I swear it’s possible haha.i just had a look and i think its the split screen option but all that does it turn off the clock/compass and replace it with a andriod auto logo. Do you have a pic of your filling the entire screen?
It took me some trouble shooting but when I’m home I’ll post a pic. It’s 100% doable. I also had the CarPlay logo there for a bit but you may just need to swipe left or right on the screen as silly as it sounds. I remember it was something so simple that fixed it for me.