I think the biggest difference is that social media amplifies the lowest common denominator view (I don't mean stupidest, but more most risk averse, most easily offended, angriest, whatever) and the lowest common denominator appears to be a little higher here.
I use it quite regularly for several of my projects and dealing with issues that users raise. It has reply notifications via email. It has emojis. You can star and watch repositories. I've never used IG, FB, WA etc but I assume they have similar concepts.
Now I post here under a banned account like a lunatic. An addict.
At least no more Reddit, and of course no more Imgur, Youtube. Facebook/Twitter I never got into much.
Hopefully one day no more social media, period. My own blog where I'll dump all my brainfarts, and zero comments. Email at best.
I don't know how it got so bad. It's just a ridiculous impulse of sharing any thoughts, mostly the dumbest ones.