After an update I noticed discover was this weird yellow color, I opened settings and noticed it too was yellow, thinking it was some bug, I restarted PC, now everything is yellow. I tried inverting colors but that is something completely different. I'm not even sure what was updated to cause this.
Didn't try different user (since i don't have any other), it was on boot menu and both x11 cinnamon and kde plasma, wasn't on the experimental cinnamon on Wayland tho.