I wonder if this person has the incorrect settings on their TV for HDR content or color space.
It looks so blown out in that post that I thought that it was an iphone shot of the writer's screen... I'm still not convinced that it isn't frankly; all those screengrabs look weird to me.
But definitely not impossible that these just looks like crap; streamers seem keenly aware that for the most part their audiences are happy to consume their media as low-contrast Tasty Wheat slop that they half-watch while scrolling insta/tiktok.