The idea that human personalities and behaviors can be sorted into two simplistic piles or even a scale between two piles is just silly.
There's no predictive value to it- you can't objectively classify\quantify people's 'vertion' and then predict behaviors or outcomes based on those classifications, not even statistically from a large sample set because it's meaninglessly subjective.
People are complex. Someone might appear 'introverted' in a social situation they're unfamiliar with, but in a different setting my appear 'extroverted' because they're very comfortable.
And some will say "social interactions give energy to extro and take it from intro" but what the hell does 'energy' mean in that context anyway? If I go to a small party with close friends all talking about sci-fi I'll enjoy myself all night and feel refreshed, but I'd be exhausted after 30 minutes at a rave and need a week to recover.
And do people migrate between intro-extro throughout their life? In my 20's I felt compelled to meet and experience new people all the time but now in my mid-40's I don't really care and tend to stick to the people I know. Does that mean I turned more introverted at some point? That's why even as a personality scale it's nonsense.
It's all just Myers-Briggs for dummies, which is already for dummies.
The only way it makes sense is as a description of immediate behavior, not of a personality. Someone may be 'behaving in an introverted way' but saying that makes them an 'introvert' is nonsense because they may go somewhere else and behave in an extroverted way an hour later.
What do you mean by 'system' here? Sounds like you think of introversion as a personal philosophy more than a trait. That is pretty interesting but that's definitely not how most people apply the term.
Because without any other context that sounds pretty exhausting. Though if I'd been working on a project for several months that I really felt good about I might enjoy the opportunity to share it with a group of people that could fully understand my work- it might be as fulfilling as it is exhausting. So am I an introvert or extrovert- or rather which side of the introvert-extrovert scale do I lean towards... Sorry but the phrasing for scale is more cumbersome than just using the terms. Of course it's not binary- that would be ridiculous even within the context of how ridiculous the whole concept is.
And you described introversion as "system that helps me cope with and navigate my personal limits, strengths and failings". Definitely sounds religion adjacent. But maybe I'm not understanding how you use introversion as a 'system' so I'm curious about that.
Introversion\Extroversions don't 'explain' anything, it's a classification. My point is that at best it's classifying behavior and that can and does change. Considering it as a 'trait' is all but useless because it's essentially just how people feel about themselves.
Do you think people can change between intro-extro (again scale implied, work with me here...) in a lifetime? If an extroverted person experiences trauma that makes them behave in a more introverted way have they 'become introverts' or are they just traumatized extroverts?