Then the software side just makes the whole thing useless with a terrible UX that will never be updated.
CarPlay is a great solution because the non safety critical stuff (music, navigation) gets offloaded to a competent software company.
On my previous car it never changed from the day I bought it, other than navigation getting more and more out of date.
On my current car I get software updates occasionally. I’m not sure that function ever changed though.
Meanwhile my iPhone gets better every year. And if I buy a new phone? CarPlay can get faster. My car never will even if I wanted to pay them.
The ability to just get in your car and have the phone-powered interface right there without having to take your phone out of your pocket and mount it in the holder is something I didn’t ‘niceness’ of before experiencing it.
That car ended up sucking in other ways too. I quickly sold it and went back to buying old Lexuses. Wireless charging phone holder, and off you go. The siren call of infotainment is powerful, but actually living with it is just more fiddly bullshit I don't need in my life.