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Take a look at CoMaps. It's fully open source with open governance model.

It reached the level of being usable for general population and it improves rapidly due to gained momentum.

OSMAnd and others can do offline maps and POI search if you want.

You could also run Google Maps web through Tor if needed. Tor is easy to use on Android.

I use organic maps. I also have a seperate user profile that can not run in the background that has Google maps installed and use that sparingly. I've used it once in the last 6 months.

Yeah I think most people use Organic Maps or Magic Earth (with the latter being closed and not as privacy-respecting as the former).