I do wonder how much is extraversion vs introversion, and much are other factors like shyness/social anxiety, or as another commenter mentioned, being non-neurotypical. I feel like these discussions are full of mislabelled terms and people who may not be fully self-aware of where they sit.

In social media I often see terms like "Introverted Extrovert" get thrown around when sometimes they just mean that they're an introvert who's good at masking. On the other hand, my energy level goes up in a group, but I definitely need time to warm up to new people before I can be comfortable around them.