Your scaling with the Plasma compositor implementing the Wayland protocol will depend heavily on the graphical toolkit the specific application is using. Gtk vs Qt vs Flutter, etc. Each of these has to implement custom backends for the waylands and that work is far from done re: fractional scaling. And each wayland compositor is quite a bit different too since the core wayland protocol is so slim and each has to implement core features their own way.
Whereas there's just one thing to target with X11. Far more consistent, less buggy overall. At least up to now. But with megacorps like IBM/Red Hat having their employees abandon X11 entirely for Gtk5, etc, it's gonna be rough going everywhere.
Whereas there's just one thing to target with X11. Far more consistent, less buggy overall. At least up to now. But with megacorps like IBM/Red Hat having their employees abandon X11 entirely for Gtk5, etc, it's gonna be rough going everywhere.