I would consider that definition to be overly simplistic and failing to capture an important point that is often referenced when describing traits of an introvert. Introverts find social interactions, especially in large groups, to be draining. I believe this to be a key distinction between people that avoid social interaction out of misanthropy or frustration or fear or depression or any of a myriad of other reasons that a person might seek solitude over the company of others.
The reason and motivation behind the desire to avoid social interactions plays a role in determining a course of action in responding to them and ending them early. If you find them draining, a simple "sorry, I gotta get going", when you start to feel drained, is all you would r really need. However, if social interactions trigger a negative emotional response, then more tools would be needed.
Here are a few references on the topic of introvertion:
https://www.psychologytoday.com/us/basics/introversion
https://www.medicalnewstoday.com/articles/introvert-definition
What do you think I don't care about? You haven't answered my question about what topic you are trying to discuss. Cause it doesn't sound like you are discussing corporations, like TikTok, being dishonest and deceptive to their customers.