Recent Gnome works very well with all-HiDPI; I had to leave XFCE when I switched to HiDPI because it hadn't good support. Recent is key here; I have been using

Recent Gnome works very well with all-HiDPI; I had to leave XFCE when I switched to HiDPI because it hadn't good support. Recent is key here; I have been using Gnome in HiDPI mode for a couple of years but I had to do some tweaks to have it working well; now it seems to work more or less out of the box. Same holds for Qt based applications. Mixed DPI screens kind of works, but there are hitches; I definitely suggest going all in.