I dont play on that one. I play on a Samsung QLED though and haven't had any burn in.
Like it was just stated, my LG goes into a burn-in screen saver mode if the same screen is left on for too long. Burn-in really only occurs if you have the same, or similar images on the screen for long periods of time.
Despite the similar sounding (and looking) name, QLED isn't the same tech as OLED.
QLED is basically the same as any LCD TV, where the pixels are backlit, the Q refers to the filter that goes over the backlight. The software can turn down (or off in some variations) the backlighting in areas but not individual pixels. OLEDs is entirely different technology. No backlight. The diode itself emits the light so the software can turn individual pixels off entirely, getting incredibly fine resolution and literal blacks in the sense that no light is being emitted.
QLEDs are great but OLED is better. But also considerably more expensive.