Hijacking this somewhat related topic:
There needs to be a standardised set of APIs that automakers comply to for smartphone-powered infotainment.
Right now you have zero choice. iPhone: you can use carplay and nothing else. Android: you can use Android Auto and nothing else.
There can't be any competition because it's locked down.
Car infotainment systems need an open protocol for display, sending touch/control knob information back to the phone, sending other info back from the car, like mic audio for voice assistants/calls, whether the headlights are on to switch between light/dark mode, whether the car is LHD/RHD to reorganise the on-display controls, etc.