While I haven't tried it, Osmand recently added support for Open Street Maps on Android Auto. I'm hopeful the experience is decent, but not willing to pay for it at the moment.
https://www.cnbc.com/2021/05/29/apple-carplay-massive-succes...
As far as I know, most cars that support CarPlay also support Android auto. I can’t imagine car manufacturers wanting to pay licensing fees to TomTom unnecessarily.
First because it uses the whole screen and heads up display and CarPlay doesn’t. But this is probably something that could be done with better integration.
Second because CarPlay takes over the phone and I want nav to keep running while I use the phone for other things. I know that I shouldn’t, but at stop lights I’ll read texts, HN, etc. with an active nav, I have to switch away from it while I use the phone. With the car running the nav, I can use my phone for whatever I like.
All I use Apple Maps for is to send directions to my car.
It’s kind of nice to just have a dedicated nav in my car.