Much easier said than done. I would personally like to, but I need a good replacement for Android Auto/Google Maps in my car. That is me personally, though. For a lot of not technically inclined people that is not possible.
Openstreetmaps data is very good, and several degoogled custom roms support android auto (/e/os comes to mind) and the paid version of osmand has android auto support, the free version of the (inferior)agic earth does too