Never heard of it before either and that is the strange part. I could try to make another version and maybe it will work somehow.

All my other wallpapers look fine, and that's a thing? I've never seen that before and i don't see it now in my settings either. maybe its just the wallpaper itself then? or maybe I'm just used to them looking sharper. The text is mainly what gets me, even it doesn't look sharp, which its separate from the wallpaper, which is why i'm confused.

I dont know why, but maybe you enabled the "Half" resolution option in the "Performance" tab of the Wallpaper Engine settings?

It lists 4k, but i have a 2k monitor and it looks quite fuzzy almost like 720p. Looks like the whole thing was compressed or something. any reason for that?