TL;DR of the article, generated automatically.

Valve is working to make x86 processors optional for Steam games.

• Steam Frame: the VR headset runs SteamOS on an Arm chip.
• FEX: a translation layer that runs x86 game code on Arm.
• Developers: most can skip porting, Valve says.
• Catch: publisher anti-cheat, like Ricochet, remains unsupported.