Why do the shadows on my games have horrible pixelization.(XSX)

HDR is not a single thing. This monitor has the same level od support as a cheap TV, under 400nits and since monitor makers never spend money on such things, probably basic hardware. One of the things that does is something called tone mapping, taking colors it can’t display and getting to come thing close.

Without seeing a direct capture of your video signal, it’s hard to tell if it’s the monitor or the game. Can you capture your clip and upload it to YouTube?

After looking at it extensively, I think what you’re seeing is the same graphics errors other users have been seeing in the game with how it’s rendering lighting

You should report it to Activision.

https://youtu.be/lpduOIdSXyM

A bit harder to see on the clip but you can still see the static on the shadows that shouldn’t be there.

I didn’t see it on my iPad, but when I’m back at the computer, I have a reference 4K monitor there to take a look at it closer with

Acer Predator XB283K pre-calibrated from manufacturer..Just a heads up tho the shadows looked like this on the monitor I replaced too.