Source: https://linux-hardware.org/?view=os_display_server
Reporting is done by users who voluntarily upload their system specs via
# hw-probe -all -upload
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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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Valve is difficult. On the one hand they have their own Wayland compositor with gamescope. Which works by launching an explicitly configured XWayland session for the game.
And on the other hand there's Steam, which is still an X application.
And on top of that are stupid Steam Input bugs that only happen when you try to launch a game with gamescope.
On the Steam Deck in gaming mode Gamescope is the main compositor which launches two XWayland sessions. I guess one for Steam and one for the game.
It's bizarre.