Earlier quoted context omitted.
My usage, as well as majority of friends that are non-geek, involves around - Scrolling through IG, Facebook, other Social Media, Forums, Online Shopping and News Site. Along with Video that in itself is a category as well as well as used within the previous few categories. News is arguably the biggest addiction of the 21st century, and IG, Facebook, Forum, are all really just "news". News about your friends, family,…
This is grossly underestimating the complexity of IG, FB and the likes. Everyone likes to tell other people how they should build their stuff, that's the easy part. Do you think React would have been created if "HTML and a little Javascript for interactivity" was enough for Facebook to deliver the UX they wanted to? No, there was a business need, and what existed simply wasn't good enough, maintainable enough or easy…
The resulting HTML that it outputs should still be readable and semantic though.