As a side note, I've started seeing the term "Overton window" more often. It's a bit shocking because I knew Joe Overton (his untimely death was a gigantic loss). It's kinda cool to see it used in general discourse now.
In Russia this concept was widely used a couple of years ago. Somebody published a popular article distorting the idea to the point of becoming a conspiracy theory against our moral values. Along with so-called "Dulles Doctrine" it became part of western conspiracy lore