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.
Related: has anyone actually tried Alyx on Linux recently? I set up ALVR with my facebook quest the other month and every game except Alyx was fine. Half-assed googling makes it sound like that was a known issue but there are also probably like five people on the planet trying Alyx in Proton.