My pxel art game is 1280x720 and when I launch it in fullscreen mode (1920x1080) everything scales nicely, except my sf::Texts that become noticably blurry.
I've used dozens of different font files but the blurriness is always there.
The thing is that when I use sprites that have the fons as a texture they scale perfectly and are sharp but copying all letters and numbers from the font file would be a lot of work...