

You could put the subtitles for videos in languages you don’t speak. What was much more annoying to me was the automatic audio translation (it’s still available, but it seems YouTube doesn’t select it automatically when you watch a video in another language).
Could you explain a bit? I see main issue with Signal (though I’m not an expert, and they’re not strictly related to security): it’s centralized (and the server isn’t even open-source).
The question is also a lot about your threat model right?