Surprisingly, there was nothing I could find that doesn't work in Linux! Well, except older kernel. It just doesn't boot, because Kaby lake I had to use a recent version like in Ubuntu 16.10
One little thing I'm unsure of is the pen. I haven't tested pressure sensitivity (I don't know, are there even Linux apps that support it?), and the buttons are not entirely right. The first (eraser) button does nothing, and the second one (right click) does a middle click. Although not always... Sometimes it just left clicks. Quite weird... But hey, it still works. I also still need to find out if multitouch works.
And I have reported the pogo pin issue, I'll post a picture a bit later :c