Translatons in Nextcloud

I am working with multiple language teams on Nextcloud.
How can we have a translator tool integrated within the Talk Group Chats?

I didn’t find a request or hint at it in the bug tracker:

Probably you could develop something to connect to a translation tool. Are there open-source engines for that?

I found translation plugins for browsers:

You probably need to adjust these plugins to make them work with Nextcloud (there might be others that are better for this purpose).

I don’t know how well these translations work. A good way to test is to take some text, translate it from your language to a different one and to english and back to your language. So you get an impression of the shortcomings of such tools.