> Input in Wayland is a lot better than in X11 but (for example) the streamlining did not go as far as dissociating input methods from locale (state of the art in Microsoft Office circa 1995, then generalised at the OS level), dissociating date formats from locale (which is why Linux is state of the art UTF-8 side but unable to adopt same-epoch ISO 8601 = rfc 3339)

WTF do input methods, locales, and *date formats* have to do with the display server?

These aren't part of the display subsystem in Windows either; these all live at the Windows equivalent of GNOME/KDE there too.