I totally get it that some people don’t enjoy labels and that’s just fine. Other people go to the extreme as you’ve stated and make a particular label a blanket statement about their and other people’s behavior.

Myers-Briggs and other personality or temperament assessments as well as connecting with people who have similar tendencies or ways of looking at the world can really help some who’ve felt like an outsider.

In my own case, knowing I’m an HSP, INFJ, empath, Aries, with a Direct communication style (DiSC analysis), Enneagram 4 and so forth provides a glimpse into why I’ve interacted and reacted certain ways. Do any of those describe me in totality? Nope.

Sure, I’m an introvert who loves to be at home alone, then needs to be social and gets energized by teaching in front of a group and online. We can and absolutely should stretch ourselves beyond our tendencies.

Also, it would be important to be aware that most introverts at one time or another put themselves out in the world more than they feel good about and get drained, just because most of our culture values extroversion. It’s even listed as one of the Big Five characteristics that you reference. Start at extroversion and work your way backwards to those who are introverted.

Some of the introverted buddies you hung out with are likely faking it to an extent to fit in…

And, just because something doesn’t float your boat, doesn’t make it irrelevant for others.

Compassion and understanding of diversity would be the best label of all:)