TL;DR: Ars tested Lenovo’s new Legion Go S handheld running Valve’s SteamOS 3.7 versus Windows 11 and found SteamOS generally delivers better frame rates—even turning formerly choppy low-settings experiences into smooth, playable sessions. It’s a a full 180 from the Steam Machines days when Linux ports lagged behind Windows.
They bench-marked five recent AAA games at two graphics tiers, then swapped in Windows 11 with Lenovo’s official drivers (plus unofficial ASUS AMD drivers to fix one game). Across the board, SteamOS edged out Windows, highlighting Valve’s growing OS prowess on non-Deck hardware.
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