Unfortunately consumers don't really punish companies for doing these kinds of things, at least I presume that's the story since high-end cars often have very shitty in-car computer experiences, like BMW or Porsche.
There used to be a zoom out/overview feature, but it's def not in Android Auto these days.
I just look at both in the morning, make my own opinion on what road would be best, then I close them both and use Waze for the alerts.
But for example, if I'm traveling somewhere far away, with charging stops, I _have_ to use the Tesla maps because the car will then start preheating the battery on approach to a charger.
Worst-case scenario these days is not too bad either, you'll get an aux connector or somewhat stable Bluetooth (if you set it up once and avoid doing anything other than play/pause/next). Yeah, from the software engineering point of view it's slow unreliable crap, but as a consumer you have little power to fix things.
So my cars are always about 5 or 6 years old when I buy them. I optimize for price and costs of running and maintaining them. What's important is that they handle well, brake as they should, be reasonably safe in case of crashes and that's it.
Infotainment and navigation, I put my phone on a holder and I use it. The car could be a dumb one from 70 years ago and I wouldn't notice. I only use Bluetooth to make hand free calls. If it had no Bluetooth I guess I'd have to find some solution for a noise canceling mic.
By the way, my current car came with a version of Android auto that Google stopped supporting the year before I bought it and the manufacturer never updated the car. However I don't care, my phone is always updated and it's exactly the same UI I'm used to when I'm not in the car. This beats having to learn two of them.
(this car pre-dates the emissions scandal, I checked.)
which is why it becomes less and less crazy to imagine apple offering a car subscription - might as well, they have the payment platform and the customers have already spent their anger on the incumbents. not that apple is alone.
Also, it appeared to have no network connection so would not pick routes according to traffic.
I spent $600 on an aftermarket CarPlay and Android Auto device and couldn't be happier.