My X220 does the exact same thing. Usually pretty fine though, but definitely noticeable, multiple times a week. I keep my display timeout pretty low and have a blank screen for the lock screen (slock, i3lock, swaylock).

Same here. Don't game on it, or watch video, so it is a great machine for most of my programming needs.

This screen revision?

The stock, not the 1080p one. I actually had the pepe and 1080p but sold them after getting cold feet.