some other weird things i've encoutered with this monitor .... it works pretty well with games that have in-game HDR settings like RE4 Remake and TLOU 2 Remastrede and it looks perfect , but doesn't work well in games that uses PS5 HDR calibration , RE 4 looks incredible with HDR..Hey there,
This seems to be a thing with that monitor.
https://www.rtings.com/monitor/reviews/asus/rog-strix-xg27uq
Could be to do with local dimming zones, which is reviewed as 'awful'