Valve published native ARM64 Steam in roughly April 2026.   The Steam Frame launched September 14th.   I built a client that installs the Steam Frame ARM64 Steam client on my RK3588 board.   It launches Big Picture mode and firstboot makes you get past the VR Joystick screen. You can run it as desktop mode thereafter. The CLIENT and GAME run natively, naturally on ARM*. No box64 etc workarounds. Why not try to share if I can? *panvk