Well, I've never been on "social media", but e.g. at night before bed some times I scroll on HN for a long time before falling asleep (30min-1hr). If I commit myself not to, I read instead.
The thing we should be talking about is forms of entertainment, and social media is just one type of entertainment. We should be discussing pros and cons of different forms of entertainment. Instead the discussion is "social media bad", which is a great starting point, but has the problem that allows us to avoid having to talk about the underlying mechanisms.
For example, one of the people responding here says "if I don't go on social media I go on youtube instead." If you try and think past "social media bad", what is actually going on?