Personally, it annoys me when people talk about being an “ambivert”, it just means that they’re ashamed of being an introvert or are in self-denial.
It also comes down to the fact that introversion and extraversion are both states where we are predominantly. So there are also times when you’re more outgoing than at other times.
Let’s go back to the person who came up with the terms “introvert” and “extrovert” in the first place; Carl Jung, as these terms of some of the most misunderstood words I see being discussed.
Jung’s observations basically come down to “introverts recharge by being alone, and extroverts recharge in the company of other people”, that’s it. Nothing about being shy or outgoing.
Introverts are some of the hardest people to control as we tend to not follow their herd, whereas extroverts tend form relationships easier.
The fact is we need BOTH, time to reflect with introspection and time to interact with other humans. Introverts and extroverts just need to work on the area where they are weak (where the other is stronger and more comfortable).