A good deal of fairly afflictive insight in this article by Lydia Smears.
But I suppose social media no more make one stupid than travel broadens one's horizons. (I do believe I have come across more narrow-minded globetrotters on my travels than their opposite. Trump's Tripadvisor map must have pins all over the place.)
I have removed FB from my iPad, but not Instagram. I persist in operating my smartphone as if it were a dumbphone, although the wifi at home undermines this intention somewhat.
I have always made sure there are set times of the day reserved for reading actual books. Interestingly, during the increasingly limited periods where I allow myself a drink, I tend to read less, but use social media more.
Yet it could also be said of me that I am already engaged in an escape from reality or at least living in an alternative one of my own fabrication, so to some extent social media apps have the reverse utility for me.