When I select a language in my account settings, I can't deselect "undetermined", so I can't choose to view only posts in my language (wich I sometimes like to do on mastodon to view posts about the news in my country). Then, while making this post, I noticed the only language I could select was "undetermined", so this is probably linked. Is the language feature not fully implemented yet ? Plus I think it would be nice if it was possible to filter by language on the posts list, and not have to go into the settings every time (same on mastodon btw)