I couldn’t find any raw data to analyze, but I found that Flatpak-related appstream.xml data is already present in this location: “/var/lib/flatpak/appstream/flathub/x86_64/(hash)/appstream.xml”.
I checked, and there are only 29 entries related to the <translation type="gettext"> tag.
For example, Collision provides this translation type tag via its metainfo file, see
When I check the tag in the appstream.xml file, I find nothing. It seems the tag is mostly omitted.
The result GNOME Software says Bu uygulama Amerikan İngilizcesinde görünecek (meaning: This app will appear in US English). On the other hand, I’m sure I have translated the app, and it is already Turkish.

