Im not sure it's "normal" more that there's something going on with the latest Samsung panels. Is the N20U 120hz? I think it's something to do with the refresh rates because OLED TVs suffer from "raised blacks" at 120hz. I think high refresh rates mess up gamma levels in OLED.So probably normal. Just didn't seem to be a bright or white as the Note 20U.
some people don't see it. seem strange. may be some devices have that problem. not all.I just turned the white balance one notch to cool and it seems to eliminate the pink and then into the advanced and then the red down a bit