Oh I absolutely agree with you, no one is going to be completely honest and their true self 100% of the time, society won't allow it.
I do believe there are more or less empathetic (one of the big things for determining a personality type). There are a bunch of people who like neat and tidy clear cut lines, like I am such and such type and these are my people because we all do this, I'm "normal". Some people get sucked in to a tribe mentality more than others, maybe it's a survival thing 🤔🤷♀️. Unsure.
I love doing all the different kinds of personality quiz things, reading horoscopes, Chinese Zodiac...it's fun to see how it does align with how I see myself and how others perceive me. Group settings are so fun for these things.