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7 years later, Valve's Proton has been an incredible game-changer for Linux
(www.gamingonlinux.com)
This is a most excellent place for technology news and articles.
It does seem to go a step further, Fedora seems to not only require you to install them, but also not provide them in the official repositories, requiring you to use unofficial repositories. Most software in a distro's repositories doesn't come preinstalled, but it's generally as simple as running the package manager.