Most public recipes are in English by default.
However, linguistic groups lile L'Aliance Francophone provide group recipes in their own language.
It's relatively easy to translate a recipe to another language.
Open the code and search for the texts between braquets " XXX ". You'll find these texts in the print() commands and in dialog. parameters. Just translate these texts to your language and you get a translated version.
For exampe, translate
print("hello world")
to
print("Bonjour tout le monde").
An example is in the code of te JET or Ebola Rebuild recipes. These recipes "automatically" provide the French version for L'Aliance Francophone and known French speaking players. It's easy to translate these "multilingual" recipes by adding a new language in their multilingual(lang) function at start. Or if you want the French version, just change the option lang="en" to lang="fr".