I think that the Snap Store has diverged a bit from GNOME Software.
For example, in GNOME Software there are 9 categories of software, while in Snap Store there are 19 categories. I have counted the categories on Ubuntu 20.04-daily.
Indeed, those are not there yet. The list of categories is actually populated from the sections API of the snap store. We will need to figure out how to handle translating those.
The translatable/translated strings on LP are currently updated when building the gnome-software .deb package. But isn’t the idea to get rid of that step, and if so, the workflow with respect to translations will probably need to be reconsidered.
@kenvandine, it’s a fair assumption than strings will be different between gnome-software and snap-store right? If so tt’s probably better to enable launchpad translations for the snap-store project then and export from there