Todays update listed a new weak dependency
gnome-shell-extension-gamemode. The update dialog did not list the package introducing the weak dependency - only the to be installed dependency.
So I set out to find a way to get the package which introduced this weak dependency with tools like rpmreaper and a few rpmqueries - without success so far.
Pacman provides a installation reason which lists the package requiring this package with a command similar to
Is there a way to find a package which introduced a new weak dependency if I only know the name of the weak dependency?