hi, in the past I only had issues with oled iPhones. When my work got me a new laptop with iris xe I went through a lot of issues. Intel confirms on the intel forum that the dithering is always activated on this card and can’t be disabled. I used same monitors for many years without any issues, the moment I hook up iris xe issues start for me within minutes. When I switch back to intel 620, all issues go away. Since you are doing a custom built you might be able to use 3rd party software to control intel’s behaviour. I was unfortunately not able to test anything in a work computer.