Doesn’t need to be touch for that

I’m renting a Mazda and it seems really tame on that front. Buttons for everything… There’s one screen that can do Android Auto/Carplay but it’s NOT touchscreen. You have a big knob down with the gear selector that you can rotate and push in/up/down/left/right to use it. But no car controls except radio tuning on it. There’s a separate knob for volume (and on-wheel controls).

Every one of them can, AFAIK. I have a second cheap used phone I picked up to play with Ubuntu Touch and it has a system called Waydroid for this. Not quite seamless and you’ll want to use native when possible but it does work.

SailfishOS, PostmarketOS, Mobian, etc all also can use Waydroid or a similar thing

Well how’d it work out after that