Currently installation of language pack meta-package (localization support) is manual. So, it's two steps for user:
Idea is to automate the second step. After discussions we determined that gnome-software seems the best place to do installation of the langpacks-XX package for new users.
Have tried a few approaches and need discussions. (To move in a direction and complete implementation).
Issue: https://gitlab.gnome.org/GNOME/gnome-software/issues/636
Looking forward for discussions.
thanks,
sundeep