Why do some new movies not have that fake green screen look?

Why do some new movies not have that fake green screen look? Because green screen adds the background later, so the light situation has to be guessed. So the crew of The Mandalorian built a 20 foot wall of LED panels around the set.

Sources:
https://www.starwars.com/news/the-mandalorian-stagecraft-feature
https://techcrunch.com/2020/02/20/how-the-mandalorian-and-ilm-invisibly-reinvented-film-and-tv-production/
https://comicbook.com/dc/news/the-batman-director-vfx-volume-practical-batmobile/