프랑코포니 커뮤니티를 설정하면서 여러 언어를 어떻게 관리해야 할지 모르겠어요

[Falco]

@stephtara

When I create categories, automatic topic titles for category description are in English

Yes, they will use the current language. You can always edit those, though.

@stephtara

and they stay in English when I change languages.

If you want automatic translations, you need to enable it via Content Localization - Manual and Automatic with Discourse AI.