Okay! I just opened OsmAnd and looked up my local supermarket. Sadly, no work hours. And this is a very popular supermarket right next to a train station in central Brooklyn, NY.

The thing is that business owners do update the info on Google Maps, and have an incentive to do so, but only volunteers update OSM.

OSM shines where businesses don't care but volunteers do: trails in a park, non-commercial POIs, etc.

At a company my wife worked for, the social media department spent half its time fixing store hours, addresses, and map locations in Google Maps and Apple Maps.

I guess it's nice that ordinary people try to do these updates for Big G and Apple. But they're often wrong, or they presume a one-day change is a permanent change, or that it applies to every location on the planet.