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Linux vs Windows tested in 10 games - Linux 17% faster on Average
(video.hardlimit.com)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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The Linux OS symbol only tells you if the game is Linux native or not. Since valve released proton it is not very useful. The deck Verified/Deck Playable symbols are a far better indication of if a game will work. But even then, quite a few of the unsupported games still work on Linux overall, just less well on the deck. ProtonDB is the more definitive source of if a game will work as well as any tweaks you can do to make it run better.