If I activate compositing and overlay in full screen windows in the window behaviour options (/home/xyz/.config/xfce4/xfconf/xfce-perchannel-xml/xfwm4.xml, property name="unredirect_overlays") my ENTIRE SCREEN starts showing the same blurriness. I had to manually edit the xml back from Gnome because xfce had become unusable.
An additional thing I noticed:
If I activate compositing and overlay in full screen windows in the window behaviour options (/home/ xyz/.config/ xfce4/xfconf/ xfce-perchannel -xml/xfwm4. xml, property name="unredirec t_overlays" ) my ENTIRE SCREEN starts showing the same blurriness. I had to manually edit the xml back from Gnome because xfce had become unusable.