Back in 2019 when I was replacing my elderly Acura, I went to my local Honda dealer to check out what they had available, since at that time, Acura no longer had any hatchbacks in their line, while Honda did. First thing I stated that I wanted was that the new vehicle must be a hatchback. Second requirement was that it have Apple CarPlay.
Interestingly enough, I tend to use just the wireless BT functionality for playing music from my iTunes library in the car while running local errands since I'm making frequent stops and am jumping in-and-out of the car at each new location and it's just easier not to have to keep plugging in the iPhone for wired CarPlay, then unplugging the iPhone very soon again so I can put it safely into my purse before entering the destination shop, library, bank, whatever. The iPhone stays safely in the purse the entire time I am running errands, I am able to enjoy my music in the car: win-win. On longer trips, though, it's a different story and CarPlay is wonderful for those situations.
Not that I'd ever buy a GM car, but I do think they are making what is likely to be a fatal mistake in terms of their future sales....