I'm introverted and I enjoy networking and group activities and also meeting and chatting with strangers. I just can't do it all day every day, I need breaks.
Having social anxiety is different from not knowing how to talk to people and make friends. Bill Russel would get so worked up before games he would throw up. But he could also perform.
I think it depends on what you're anxious about. Being scared that people will dislike you is different from being scared of embarrassment and it's different from being scared you don't know what to do in the moment.
Of course all of those can be helped by simply exposing yourself to the situation over and over again. You learn that if you do embarrass yourself or if people dislike you, the world doesn't turn to ash.
Possibly tangential, but I've really been enjoying writing software with very minimal tech stacks with no dependencies (or very few). Go works well for this, but really any language that lets you create a file and just start writing straightforward code is sufficient. As soon as I need to use some CLI to scaffold out a project with tens or hundreds of files, or pull in a ton of dependencies, I kind of check out. It's fine when you have a team and a big serious project, but in my free time I really just enjoy having a couple files of straightforward code and that's it.
"Every person you look at, you can see the universe in their eyes -- if you're really looking." -- George Carlin