Valve are still adding in improvements to the excellent VR game Half-Life: Alyx, with the latest update out now. With Foveated Rendering on desktop now available, many more gamers across different VR kits should be able to use it.
From the changelog:
Key Features
Add a setting under Advanced Performance to enable Foveated Rendering on desktop for supported hardware (for DirectX: NVIDIA GTX 16XX+, RTX 20XX+; AMD requires launching with -vulkan). Can increase rendering performance. Enable eye-tracking on your headset for best results. More information here.
Enable stencil buffer tagging when running natively on Steam Frame to help improve reprojection quality.
Fix several rendering crashes common in workshop content.
Fix “Gnome Alone” achievement failing to unlock for some users.

In the linked guide it notes:
The VR headset must support eye tracking in their SteamVR driver, here are example of SteamVR drivers capable of it:
SteamLink on Valve Steam Frame, Meta Quest Pro, HTC VIVE Focus Vision, Play For Dream MR, Samsung Galaxy XR, Pico 4 Pro/Enterprise.
Virtual Desktop on Meta Quest Pro, HTC VIVE Focus Vision, Play For Dream MR, Samsung Galaxy XR.
Bigscreen Beyond 2e.
Oasis for Windows Mixed Reality on HP Reverb G2 Omnicept.
Somnium VR1 Visionary, Titan and Ultimate edition.
Apple Vision Pro with KRVR.
More headsets are capable of sending eye tracking data to SteamVR with additional 3rd party drivers:
Release Date: 📅 23rd March 2020
Article taken from GamingOnLinux.com.