Mine didn't show signs of burn in for about 4 years, then it quickly started burning in.
It is real. Mine was older, some people say newer models are much better, but there is seemingly debate about it.
I decided to go with just a regular LED, x95j, and yeah, it doesn't have the contrast OLED had and i miss it, but it still looks pretty damn great, and the glowing effect only distracts in rare super dark segments in games, and i don't gotta worry about it.
hoping my current tv lasts until either micro-LED or QDEL are accessible..