Though we have not yet added support for multiple language tags, we have added more than 350 new options that we think may help out with this particular ask.
For more information, you can take a look at our blog post at https://blog.twitch.tv/en/2021/05/26/celebrate-yourself-and-your-community-with-350-new-tags/. Thank you for your feedback and ideas!
We will leave this topic open for now for further discussion around whether this meets the needs of the request.
An error occurred while saving the commentTarotAndGames commented
Give the option to add multiple languages in stream manager. A lot of streamers speak more than one language, even during their streams. It would also be nice if a viewer knows he can join the chat in his own language.