That’s not my experience. I work in downtown Minneapolis and open street maps is missing basic things like entrances to public parking lots. Open street maps has a problem if it can’t get details right in population dense areas.
It really depends, but in germany (has a large OSM community) OSM has so much better quality & detail for almost everything except buisnesses. It suffers from poor search, routing that doesn't take traffic jams or roadworks into account and a lack of high quality apps and thus only "nerds" use it instead of Google Maps or others.
It's very hit and miss, as it's dependant on how many perfectionistic mapping enthusiasts that edit OSM as a hobby are in your area.