My biggest annoyance at this stage is a few blurry apps when using fractional scaling. Eg Calibre & GIMP.
But I don't think that's Wayland's fault - it's up to those apps to upgrade their UI libraries (which might be a monumental task, I'm not sure).
I know GIMP is working towards GTK3 and hopefully that fixes the issue.
As for Calibre. It uses PyQT. Does anyone know if PyQT supports fractional scaling now? And what it would take for something like Calibre to upgrade to a newer PyQT version?
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