Overture maps is a project by osm supporting companies to present their fake and/or low quality data to their shareholders. They can't import it to osm because of the aformentiones reasons, so they created their own osm with blackjack and hookers.

Roads and landuse data is from osm so it it's the same. Building contours based on osm and from some MS ai tool, similar to what you get in the RapId editor. At some places it's good, in dense cities it's unusable, and there are a lot of false positives, fake buildings on lakes and rivers, etc. Shops and POIs are from Facebook, a lot of them are at the wrong position or they not exist anymore, duplicates and jokes etc.

So as I see, it's not usable by itself for anything. But it's license is compatible to osm, so you can freely copy from there. I used it to check validity of osm notes. Facebook via this allowed us to copy data from any page, it was a grey area before. Here where I live a lot of shops don't have a website only a FB page, and it wasn't clear if you can copy phone numbers, email addresses from there. Now the same data is available in overture