The pixel shifting that GP mentions is already included in most if not all. I'm dailying an LG C3 42" as a monitor and these 16 months, so far so good.

However, I am on Linux and running a custom "DE" with Sway, my background is pure black and swayidle locks my screen in 3 minutes (to black). Also, anytime I get up, I power it off because even if it's displaying only black, the screensaver kicks in after some time (dumb feature that I cannot disable and would be better served by my solution).