Displaying information without causing inconvenience

I've noticed that social media websites with lots of images/videos being shared try to display information(such as title, description etc) in a compact way and try to bring the comment section up higher.

I think this makes sense, since users can already see the image/video(in platforms with autoplay) from a different page they were scrolling on, so the users' primary intention when clicking would mostly be to see the comments.

So how big should the information section be for it to be acceptable on comment section focused platforms? Also, is this why reddit has the title, upvotes at the top and a row of buttons at the bottom, because having them in the same place would distract the user?