I just went and googled (sorry microsoft 
) “Bing maps” because I had suspicion that my country (that was never part of any update) looks much better. All the places that I checked have satellite imagery from 2020. I checked a lot of random places in the world. There are still clouds in some areas so there are still areas with generic textures in the game but overall: great improvement. I have half a mind to start flying without msfs2020 map enhancement again.
tl;dr: Yes Bing maps recently updated a lot of their data. And it is noticeable in the game.