That doesn't affect me, as I'm on an SDR display. It's funny because RDR2 got slammed for its 'fake HDR' when it released, but for those of us on SDR, it's the best fake HDR I've ever seen!A new HDR Calibration menu has been added. Players can now switch between the existing ‘Cinematic HDR’ and new ‘Game HDR’ styles, and a new option has been added to allow manual adjustment of Peak Brightness values for different displays
From the above
Sometime today I'm going to compare 1.09 screenshots on my system with 1.00 to see if I can easily discern the differences. When ED's graphics were downgraded, it was an obvious 'in my face' loss of quality. In RDR2 the difference is much more nuanced.. It doesn't help when one starts looking at the graphics with a critical eye instead of just playing the game, as this is when we see the man behind the graphics curtain.
I wish the DF review of 1.09 focused on other things than just AO and HDR. The fact they waited so long to even address the issue (which supposedly was introduced in 1.03) shows they weren't looking too terribly hard at things like general lighting quality, texture resolution, filtering, etc. If you look at the comment section of their video on the matter, there's lots of people claiming certain details remain downgraded in 1.09.