At 100% scaling on Windows, the serif font used doesn't kern or render properly; crossbars in letters such as 't' and 'f' are overweight compared to other strokes, and makes the font look uneven.
Designers all seem to think we use 4k screens at 200% scaling, for that ultra smooth look, when in reality, that's far from the case[1].
Edit: Example of what I'm seeing: http://www.jaruzel.com/files/fonts.png
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[1] https://gs.statcounter.com/screen-resolution-stats/desktop/w...