why do you consider yourself an introvert if you enjoy chatting with everyone and everything?

I fit this description too. I consider myself an introvert (that is, more introverted than extroverted; very few people are exclusively one or the other) because I need to be alone to recharge. When my "social battery" is full, I eagerly start conversations with strangers, and even when it is drained I'm comfortable talking to people, though I might not desire to.

It all depends on the subject - I can talk about cooking, climate change, collapse, film for hours. As for sports, gossip, celebrities, I clam up. Ditto for any talk that's status seeking or not curious and bi-directional.

Introvert doesn't mean one doesn't enjoy socializing, just that one needs quiet down time to recharge from it. Extroverts tend to be energized by socialization. It's also not always so cleanly binary, either.

I really hate that introversion gets conflated with social anxiety or misanthropy on the internet.