Earlier quoted context omitted.
Fractional scaling for wayland is broken on a per app basis which feels strictly worse to me than it was before. Libre office currently is broken on wayland and works in x11
LibreOffice works for me on wayland lol. I don't know why you would wanna do fractional scaling on a per app basis whenever you got one screen. But, for your libreoffice woes, try using a different backend? Libreoffice includes support for gtk3, gtk4, Qt6, and other backends: https://github.com/LibreOffice/core/blob/master/vcl/README.m... Maybe you need to try wayland with an alternative backend?
People keep pushing KDE+Wayland to beginners either through recommendations or preconfigured stuff like bazzite. My experience is that the defaults in such a setup are broken and frustrating.