i have a rivian, and despite being a carplay fan before, i do not miss it. Carplay is a crutch for legacy autos who cant make software, so you just want to overlay a phone feed over their crap. But its very limited, its essentially a video overlay box and has terrible / non-existent integration with the cars smarts, like battery, range, HUD screens, advanced audio controls, etc etc. In my experience with carplay in other smart-ish cars (BMW X series) the carplay experience fights with the car OS constantly and is an awful incoherent experience. A well made car software solution, like the rivians(mostly), is a better experience overall imho.

I say this as someone who still loves having carplay on my other car, a subaru, because their software is atrocious.

i would say, give one a try you might change your mind.