Nobody else seems to have mentioned it, but with 2x4K screens, Ubuntu Gnome (16.04) with it's Hi-DPI capabilities is the only thing even close to usable for me

Nobody else seems to have mentioned it, but with 2x4K screens, Ubuntu Gnome (16.04) with it's Hi-DPI capabilities is the only thing even close to usable for me at the moment. I've tried switching to XFCE and a couple of other light weight DEs but when I can actually get both displays to output at once, the text and UI are so tiny or messed up it's unbearable. That said, Windows 10 does an almost equally horrific job (scaling everything up to a horribly pixelated size but at least a size I can see sitting 2-3 feet away. I only use Windows 10 for gaming so it doesn't bother me. My go-to for both home and work is Ubuntu Gnome 16.04 right now, sadly even Kali is horrific to use when I do occasionally need it now, but Ubuntu with Gnome has worked close to flawlessly and looks stunning with its crisp clear test and UI elements at 4K.