I had to return the LG CX. I would have vertigo symptoms. I couldn't force my eyes/brain to get over it. What's weird is I can use my iPhone X without issue and it is also OLED, but all OLED iPhones since then are unusable. I wish I could explain that.
Regarding monitors, I did buy a BenQ as they claim not to use flickering. I haven't had a chance to really use mine yet, but if they are as easy on the eyes as they claim, they do make higher end 10 bit models.