Proton Experimental update fixes ARM64, EA App and Modern Warfare 2

Valve released a new Proton Experimental update, the testing branch of its Windows-game compatibility layer for Linux and SteamOS. It adds an ARM64 build (including for Steam Frame) and fixes EA App login, the Safe Mode window in Call of Duty: Modern Warfare 2 (2009) and Ragnarok: The New World on non-Steam Deck devices.

• ARM64 build added, including support for Steam Frame
• EA App Launcher login fixed with Gamescope
• Call of Duty: Modern Warfare 2 (2009) Safe Mode window fixed
• Ragnarok: The New World now playable beyond Steam Deck