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.
Was yellow with x11 plasma and cinnamon except cinnamon on Wayland was normal, I tried switching to lightdm and it was giving me errors.
I found someone had same issue a day before on mint forums. Apparently it was a graphics driver from oibaf ppa.
I forgot I had timeshift setup monthly (changed it to weekly), so I restored it and everything looks fine. I didn't lose anything because I was so busy that I only had energy to played Factorio after work which are steam cloud synced.
It work none the less, I'm at a stage in my life I rather have stability rather then bleeding edge, I used to enjoy fixing things, till issues started happening when I really needed to work, instead of spending hours fixing wifi drivers.
Only reason I had oibaf drivers was because I was once trying to get game scope to fix a bug with mouse controls on war thunder for Linux. Was dependency issue hell, so after 2 hours I ended uninstalling it and not trying the game.