personal anecdotes, but the vast majority of me being a passenger to someone else's driving, they all used their mobile device for GPS. even the couple of cars i owned that had a nav system, the GPS came from the mobile device. it required their app to be installed to input the destination, making the internal unit just a second screen for your mobile.
I suspect most people don't use most of the native manufacturer apps even if they sort of need to provide them. Aside from rarely changing some settings, my touchscreen is mostly just a screen.
Granted, he took a long time getting a smart phone because they weren't allowed in his secured office, while dumb phones with no camera where allowed longer. On the other hand, he's also automated his home (a few times with updates), so it's really the one weird outlier.
Nowadays, there's a few companies that actually seem to do a decent job of GPS in the car itself: Mercedes has a good tech in their new EVs that seems smooth. Android automotive (not auto) cars have built in Google maps such as Polestar, the new Cadillac EVs, and some other Chevy products do well. Although it's not much different than just having an android phone with android auto. And, of course, Teslas own system which is all inhouse.
There's little reason to use a phone in the traditional phone holders if you own one of those cars.
Mostly, I just use my phone. It's simpler and faster. My cars are too old for carplay/android auto, and my experience with android auto was that it was worse than the phone in a clip or a cupholder, but carplay seems nice. For longer drives to unfamiliar places, I'll put the address in the car too, sometimes the phone gets tired of listening to GPS.
I'm sorry, what?
GPS seemed to work ok on the return trip.
i wish i could be more like you