My problem with auto manufacturers backing away from carplay/aa is that the auto companies have largely been unable/unwilling to match the software investments made by Apple and Google. If they did match them, I'd have a different attitude about it. But most would agree that Tesla has the best vehicle software, and even Tesla cannot match what Google does.
If I were running a car company, I'd try really hard to strike a partnership with Google or Apple (preferring Google due to there being a lot more Android and Google App users) that gave me access to all the usage data but still allowed me to leverage their deep investments in software.
With cars, especially EVs becoming more software-defined, I don't see creating a dependency on a specific consumer-oriented software company as a good move.
Of course Apple and Google are going to have more software investments; they are software companies.
Competition is usually a good thing over acquiescing to a competitor with a higher level of product offering, especially when that competitor's focus has been in that segment for a substantial amount of time. Conceding to third-party providers moves in the direction of generic offerings and improvements dependent on those limited providers. You become hostage to whatever those providers decide, with limited leverage.
Imagine if Spotify was the only music app offering in every car and on every consumer computing device.
I understand the desire for the best product offerings as a consumer.
I just don't see taking a shortcut via third-party agreements versus internal improvements.
Or at least consider agreements with other providers.
And yet this all probably centers around car-to-phone integration.
Based on phone operating systems, that results in Apple and Google as the ecosystems to join.
I just don't believe in joining an ecosystem, as the only solution.
Ecosystems sometimes equate to or result in unfortunate dependencies.
Don't we already have enough Apple and Google already? Rhetorical.
History just shows me that competition is good.
Imagine if the overall sentiment regarding video creation platforms was, just use YouTube.
No Tik Tok or other platforms with unique twists from YT.