Using a screensaver is a bad idea. The display might not get burn-in, but it will contribute to the degradation of the OLED pixels (They wear down over time)
Best option is to have a completely black desktop background with no icons (or hidden with something like Fences) and a auto-hide taskbar. All you need to do is hit Winkey + D to toggle between the now blank desktop and whatever you had opened. Just move the mouse cursor off to the right side of the screen and you have a completely unlit screen. There are probably some third party apps floating around that can do this same sort of toggle-able blackscreen as well.
Using a screensaver is a bad idea. The display might not get burn-in, but it will contribute to the degradation of the OLED pixels (They wear down over time)
Best option is to have a completely black desktop background with no icons (or hidden with something like Fences) and a auto-hide taskbar. All you need to do is hit Winkey + D to toggle between the now blank desktop and whatever you had opened. Just move the mouse cursor off to the right side of the screen and you have a completely unlit screen. There are probably some third party apps floating around that can do this same sort of toggle-able blackscreen as well.