Fractional scaling in Anki yields in blurry fonts. Tried setting the environmental variable to ANKI_WAYLAND=1, in order to “force” Wayland mode.

Apparently this did not work due to a QT bug that is still unresolved: https://github.com/ankitects/anki/issues/1767, https://github.com/qutebrowser/qutebrowser/issues/6914

A temporary bypass is setting the env variable QT_QPA_PLATFORM to xcb aka using X11 mode until the bug is fixed.

P.S.: Starting Anki with QT_SCALE_FACTOR_ROUNDING_POLICY=RoundPreferFloor works and there is no need to use X11 legacy mode!!

https://forums.ankiweb.net/t/anki-in-wayland/40361/5