It was only months later after using my 32" QD OLED monitor, that I noticed that the screen was filled with what sort of looked like grease stain from the kitchen. The filth was suspiciously uniformly distributed around the entire surface, everywhere the same sized dots.
However, as nothing else is covered in grease around on the desk, I simply concluded that the filth must have been some residue from the thin film I removed from the screen on day 1.
I have stopped eating certain foods in front on the monitor, because I would like to not have to clean this repeatedly, like with my old 27" IPS monitor.
I still am unsure if repeated cleaning with the recommended cleaning solution (Gigabyte's website) will damage the panel surface or not. They have a list of do and don't, but even though they mention a mix of distilled water and ethanol, they NEVER mention isopropyl alcohol, which imo is weird, if it might be important.
My covid surface cleaning bottle, only says 85% Alcohols, not a word if it is ethanol or something else. So I mixed distilled water with this stuff, at least used once, but I can try simply use water and a clean microfiber cloth the next time, to see if that is good enough.