I think short form content has been unfairly demonised and long form overly romanticised
Short form is NOT making us stupid and distracted.
shorter content != dumbed down content
not being able to tolerate or engage with badly written text != illiterate
Yes sure, there are short form that lack nuance, substance, or clarity. but there are also some long form content that can indeed be made more succinct and more engaging.
Yes perhaps there is a larger trend of the level of tolerance of pain and patience across different demography, but the point is, smartphones are not the culprit and you have more control over the way social media influence your mental health than you are willing to accept.