> The networks present a false sense of reality which lowers happiness. Everyone always posts their highlight reel which makes you feel like the whole world is killing it constantly and you aren't.

If this is what happens in your feed, you have a shallower and less genuine set of social media connections than I do. I get highlights, sure, but just as much lowlights, and quotidian events that don't meet either description.

I suspect that the people who connect with networks of people who do exclusive self-image-burnishing social media posts would also connect with people that provide the same kind of fronts in other venues (including in-person), though I'll also grant that if you tend to connect predominantly with such people, social media magnifies their effect, as it's easier to consistently present an image online than in person.)