I gave OpenStreetMaps a try a few years ago and tbh it was shocking just how outdated it was. It listed businesses as existing that hadn’t been around since before I was born and there were several streets that just didn’t exist at all.

I did my best to update it, but there was just so much that was outdated in my area that I eventually gave up. It honestly would’ve been easier to just redo the entire thing from the ground up, that’s how bad it was for my area. To be fair, even Google maps isn’t idea, there are parts of the city where I live that haven’t had a street view update in 10 years, but at least the actual map info is accurate.

I’ve heard from people in Europe that their experience was that OpenStreetMaps was actually better than Google maps, so yeah there is some significant variance in quality depending upon region.