Is using xdg-utils post-install safe?

[Jesse Gibbons]

I'm working on packaging The Powder Toy. When it first starts, it asks if
the user wants to install it. When the user clicks confirm, it tries to use
xdg-desktop-menu, xdg-mime, and xdg-icon-resource.
Is this a safe behavior with guix, or should I try to patch it out?
If it is safe, should I bother trying to install a desktop icon with guix if
the program will do that itself?
-- 
-Jesse