I haven't seen that (yet) in France. All the referenced restaurants are real places. This being said my city simply has too many places with a lot of them outright bad. Almost all the good restaurants are on location only and don't deliver. I find myself using TheFork a lot more than Über Eats nowadays.
I was talking about Madrid, which is by far the largest city. I'm in Bilbao right now which is fairly large (metropolitan area or "Gran Bilbao" has 850k pop.) and the virtual kitchen fever hasn't taken off yet either.