The FOSS ones suck in comparison honestly. There’s really just osmAnd that has a really ancient UI. As for other OSM(OpenStreetMaps), I find MAPS.ME to be the best, but it’s closed source with some crypto scam crap built in that you can’t disable.
I don’t really like OSM based maps because they miss tons of places where I’m at, when I specifically need building numbers and locations. Also the search on both apps is god awful and straight broken.
Google Maps is definitely miles ahead of the competition here. The other features like seeing how busy businesses are, reviews/images, menu and phone number/website. These are also icing on top of the cake that make it essential to have which none of the competition have, let alone any FOSS ones.