Magic earth was still not good enough to be a Google maps replacement (nothing is really) while at the same time not as private as OsmAnd/organic maps/comaps. It was always an awkward middle ground. I don't even understand where magic earth gets its traffic data. It wasn't even accurate.
Personally, I think using one of those open source maps options and Google maps as a fallback (and when you need live traffic) makes more sense.
I already compartmentalize my Android Auto apps to a separate user profile that I turn off when not in use.
I just need to figure out: Organic Maps vs CoMaps? What does this community recommend? For me, it needs to support Android Auto. Also, I tried comaps recently and not sure if it's the app or something I did, but the search feature sucked compared to organic.
Also, FYI, you can still use Google maps to look up places in your browser or the GMaps WV app from F-droid. Apple Maps also has a functional progressive web app for looking things up on. DuckDuckGo maps section is also a privacy proxy for Apple Maps, though it's not designed as a progressive web app.