My 2015 Subaru Impreza has a shitty entertainment system. At least it still connects via BT, but they removed the screen mirroring really early on and the app had ~1 star on Google Play for a long time (probably still does). Thankfully it’s not integrated with the features of the car in any meaningful way. I could swap it for any other head unit. No sure how that will work with modern cars where the AC, lane departure, and everything else goes to the stereo.
The real issue, as you point out, is there is nothing to force them to continue supporting it or maintain its features once us poor suckers have bought it.