Comment 22 for bug 1797308

@Seth: As I wrote in #19, the 100% and 200% buttons (attached screenshot) produce no observable effect on kicad's viewport issue but launching kicad with GDK_SCALE=1 fixes the issues regardless of what the buttons are doing. Therefore I can not imagine a way in which the buttons and the variable are doing the same thing. Also all applications I use, except for kicad, behave normally and have no issues with scaling, viewport scaling, font sizes, dpi, etc. so it doesn't make sense to set a global GDK_SCALE and font sizes and essentially break everything except kicad.

This is most definitely not a configuration issue but a bug in wx widgets when running opengl on hidpi screens (cf https://trac.wxwidgets.org/ticket/17391) and likely not fixable on the kicad side without significant effort.