Imagine a young explorer who's just heard that word, "git". But it actually means an entire world. How is this young explorer supposed to dive into this mysterious world with just a machine in hand ?
He's got vs code though !! And he's also got fish and zsh on WSL !
Depends on the goal. Exploration for exploration sake is probably not going to hold your attention long. git is a tool to track changes. Do you have something you want to change? In other words, you need a reason to use it. Pedantically, your image already has a problem. git is not centralized. It is merely convention that some given local repo is blessed as "upstream". But the whole point is that git is distributed.
Advice: Find a reason to use git. Put your /etc/ under git control, for example. Or something in your home directory (lots of people roll some kind of dotfiles repo). Or contribute to a FOSS project that uses git.