I guess so. And if you should manage to do it, perhaps also write a wiki page
about the process itself.
According to https://trisquel.info/en/wiki/trisquel-team we're short of
French translators and you should join the trisquel-translators mailing list
and ask there. (see link on that page)
Joyeux Noël
Hello,
In French, some of the welcome texts (in the Ubiquity installer) are not
translated. Where can I help translate them?
Here seems to be something
https://devel.trisquel.info/trisquel/trisquel-packages/tree/master/7.0/ubiquity-slideshow-trisquel/data/usr/share/ubiquity-slideshow/slides/l10n
Trisquel has different welcome texts than Ubuntu.