Good news. Hopefully this will help to finally break the de facto monopoly of Microsoft’s GitHub and bring the distributed aspect of Git - away from gatekeeper platforms - back into the foreground.
Linux is probably not the wisest choice for gaming - that would still be Windows. Anyway, the distribution does not matter that much. You can install most Linux and cross-platform software on most distributions. Do not choose your system because of what comes as the default desktop, default package set et cetera. Try a few ones. Read some reviews.