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On this day in 1991, Linus Torvalds announced he was working on what would become Linux
(www.xda-developers.com)
This is a most excellent place for technology news and articles.
Ubuntu LTS is generally used for servers, but if you are going to game on it you should consider using a container such as flatpak. It will share a kernel with your host OS (so if you need a newer kernel you are out of luck) but will be packaged with a newer version of Mesa. Installing drivers outside of the official repos can be a PITA because you often have to re-do everything when you upgrade your OS.
edit: should mention flatpak won't make your OS work itself. You'll need a newer distro for that. Ubuntu only gets major software updates for six months until the next release, everything after is minor adjustments like security updates and bug fixes.