The community is much more friendly, the system is probably more arch than arch. The downside is compiling, but big packages have binaries now, and small packages build and install just about as fast as a binary distro.
FO3 was my first fallout experience, and I loved it. Currently playing 4, and it's not as engaging. Some elements are cool (building), but the stories seem flat.
Can you expand on the idea that it's not a good fallout game? What does that mean? What makes a good fallout game.
Just FYI, when you ask these kinds of questions, provide your region, and ask for that if others.
Here in southern California things are working as expected.