Comment # 4 on bug 1065574 from Andreas Stieger

This kind of bug should not be filed against Leap until discussed and changed
in Tumbleweed. If you are merely starting out (bug 1043401), do it there. 

(In reply to Richard Bos from bug 1065577 comment #0)
> I've chosen the component KDE applications, but the requests is valid for
> all other desktops.  But there is no general desktop component.

Neither the system or a single desktop creates these groups - the single
packages do via their .desktop files. As such you cannot request for this group
to be replaced, but rather the single packages need to place themselves into
the group.

You can read about the XDG Desktop Menu Specification:
https://specifications.freedesktop.org/menu-spec/menu-spec-1.0.html 

A set of groups exists, and group compliance in openSUSE is enforced via
packaging checks. I am not aware of this type of group being proposed in the
XDG menu spec. Package of this type should be in Network;P2P until this
changes.

https://en.opensuse.org/openSUSE:Packaging_desktop_menu_categories
https://en.opensuse.org/openSUSE:Packaging_guidelines#Desktop_files