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GM Says It's Ditching Apple CarPlay and Android Auto for Your Safety
(www.motortrend.com)
This is a most excellent place for technology news and articles.
Tesla and Rivian are both newer electric-only manufacturers, though (unless there's something I don't know about Rivian). Their market is quite different from stodgy old GM's.
And their software integrated into their cars is much better and receives OTAs (as a Rivian owner). However also as a Rivian owner: I'd prefer car play/AA.