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Insiders say cutting-edge graphics are too costly for AAA games
(www.tomshardware.com)
This is a most excellent place for technology news and articles.
Thanks to valve/proton, the biggest issue for playing on linux nowadays is the kernel level anti-cheat they force on some competitive games.
Other than that most of the games just work, especially if they were made in a common engine (godot, unity, ue, …)