All operating systems sucks, but Linux just sucks less

You can do a lot of things with git, and many of the rules of what you *should* do are not so much technical limitations but are about what works well when working together with other people. So git is a very powerful set of tools.

There were open source projects and free software before Linux was there. Linux in many ways is one of the more visible and one of the bigger technical projects in this area, and it changed how people looked at it because Linux took both the practical and ideological approach.

Once you realize that documentation should be laughed at, peed upon, put on fire, and just ridiculed in general, then, and only then, have you reached the level where you can safely read it and try to use it to actually implement a driver.

So I would not be surprised if the globbing libraries, for example, will do NFD-mangling in order to glob "correctly", so even programs ported from real Unix might end up getting pathnames subtly changed into NFD as part of some hot library-on-library action with UTF hackery inside.

Generally, the best way to learn git is probably to first only do very basic things and not even look at some of the things you can do until you are familiar and confident about the basics.

I never try to make any far-reaching predictions, so much can happen that it simply only makes you look stupid a few years later.