The only meaningful use of the introvert/extrovert dichotomy in my experience is just that extroverts charge their batteries in social situations, introverts drain their batteries and need time to recharge. Knowing this is useful, but says absolutely nothing about social or conversational skills, charm, interests, etc - even if it might be easier to develop social strategies if you are extroverted. But there’s certainly a lot of charmless extroverts around as well.