People keep saying this and yet, I have never used any of these short form video services or really any social media outside of desktop websites like hackernews and reddit. Even on reddit I just subscribe to a few niche and mostly technical subreddits. It seems extremely easy to ignore it all.

Considering the median amount of time people spend on social media daily, it sure does not seem to be so easy for the average person (as was implied in the comment you replied to). I've got a pretty good self control when it comes to the common vices, but I can't see why that would generalise to everyone else.