LG C3 42 1440p

Hello, I want to get OLED only for watching films and gaming. The best option for that is LG C3 42. The problem is I do not have powerful computer to play in 4k.

What do you think about playing LG C3 42 in size 27" in 1440p? Is there a chance that the screen will burn in the middle and not on the sides where there are black bars?

I know it's better to buy 27" monitor, but I also want to watch films, that's why I thought about playing in less size in 42".