“Some carmakers” is a strange way to write General Motors, which is to my knowledge the sole carmaker who has announced they’re going to shoot themselves in the foot by dropping a non-negotiable feature required by a majority of new car buyers. I predict they backtrack on this plan pretty rapidly.
Volvo did this a few years ago and they’re now reversing course.
Tesla also refuses to support CarPlay and Android Auto, because they believe their software is better. And why shouldn’t we trust them? Tesla has a stellar record for fixing their buggy software even after your car is no longer in warranty. /s
I do wish Tesla had Android Auto, but their software is really quite good.
Mostly I just want different music apps like Plex and Newpipe.
The nav stuff is mostly fine. SMS integration is good. Video apps while parked is good.
GM is the biggest, but also Telsa and Rivian. Almost all the big players support it now.