Somehow I found ways to remove and break the GUI multiple times in multiple ways in multiple distros.
Different scenarios, different times, different issues trying to "fix". My usual fix after this was always to copy what I think I still had important and then move on with a reinstall.
Recently I have been playing with ZorinOS and broke it in the same way by fidgeting with pipewire. Distro hoped to Fedora Silverblue due to the immutable filesystem. I wonder if I will break this one in a way I cannot revert it easily with rpm-ostree. I almost feel challenged.
C++ is also the standard in game dev. You may see some C# here and there, but most engines, public available or otherwise, are built on C++.
If it is a AAA game, I can assure you it is most likely made with C++.