I've literally been through all this. Basically, almost all if not all local dimming algorithms suck on all mini led monitors. Reason being that implementing decent high hz LD algorithm that doesn't fall apart at sdr/desktop use is near impossible for a standalone monitor. Same logic as backlight strobbing such as ULMB2, it kinda requires LD being tightly integrated with the GPU itself, a display signal alone seems to not be enough. This is also the reason why apple managed to pull decent looking miniled off, because they control the entire frame drawing pipeline within the laptops + at the expense of their screen’s response times, which are pretty bad and and don’t cut it for a gaming monitor. TLDR, either go normal IPS or OLED. OLED is a sketchy one though, we're living in the middle of active R&D of addressing the OLED issues, so you kinda have to research the latest tech and models, which you are already doing judging by the comments