TL;DR: Valve launched the Steam Frame VR headset with an Arm-based Snapdragon chip, aiming to run Half-Life: Alyx natively and streamed from PC. The new hardware features a “Frame Verified” status for optimized games, while rumors suggest two upcoming Half-Life titles supporting PC and VR cooperative play.
Honestly these days the list of things you can’t easily compile natively for ARM is getting pretty scarce. It’s actually kind of surprising to me that there would even be a significant need for an emulation layer, versus just working directly on compiler and runtime support directly.