If it's truly a generational change, that would be a very interesting development. Especially if it happened in just the five years between when we were teenagers - I had no impression that people a few years younger than me had a wildly different experience than me. But I could certainly be mistaken.
Do you find no familiarity at all in these descriptions? Meaning some of the following - Being more interested in reading than gossiping, liking technical projects more than team sports, being uninterested in popularity contests and social status games to such a degree that you barely care about losing them, prioritizing learning over number of superficial acquaintances, having ideas and thoughts that you assume to be true but for which you experience lashback for stating out loud. Potentially experiencing some loneliness or hostility over this, not necessarily making that part of your identity, eventually seeking a small number of like-minded folks...
Has the world really changed this much? From my perspective, it seems likely that you're just not the target demographic for this essay.