Translations not up to date

Hello!
I am using flatpak with Ubuntu Jammy.
When I open the “About” window of Amberol or Weather, haven’t tested more, the entries “About” and “Credits” are in English and not in language, Occitan.
When looking in the l10n site, I can see that all the versions of GTK available there have these entries translated properly.
How can I check the version of GTK used in flatpak?

Best regards

Hopefully this commit will fix the issue:
https://gitlab.gnome.org/GNOME/gtk/-/commit/19fb336c398aaea851d8d991c9c804e89299ad0d
Can someone please confirm?