Comment # 4 on bug 1218422 from John Doe

Can confirm this is an opensuse issue. There is no wlr directory where it
should be. On other distros like Fedora or Arch, there is a directory in
/usr/include/hyprland/wlroots called "wlr" while the opensuse package of
hyprland-devel does not have this. This causes the headers that are needed to
build the plugin to be not found,

Link to show the files in the packages
https://archlinux.org/packages/extra/x86_64/hyprland/
https://packages.fedoraproject.org/pkgs/hyprland/hyprland-devel/fedora-rawhide.html#files