SteamVR Beta adds Steam Frame's aurora environment to SteamVR on PC

**SteamVR:**

* Default environment is now the "Aurora" (can be disabled in settings) * Added content-aware aurora color tinting, in theater environment * System UI supports gamepad navigation * Lesser-used UX controls moved to an "Additional Options" menu * Game dimming while the dashboard is up can be disabled in settings * Fix for keyboard not showing up when summoned in some scenarios (Skyrim VR)

**Input:**

* Fixed bindings not correctly recognizing some render model simulation values * Fixed the Binding UI not displaying the correct default values for render model simulation type * Fixed bindings missing when they were modified locally and then the Steam account was changed

**Steam Link:**

* Added tethered Quest support over USB (must be used with Steam Link Beta) * Fixed cases of video corruption, checkerboarding, and stuck streams. * Improved automatic bitrate selection. * Allow HMD to override host framerate (must be used with Steam Link Beta) if configured manually at OS level on Meta Quest headsets.

**Linux:**

* Fixed async reprojection failing on AMD GPUs. * Fixed GPU selection on systems with both discrete and integrated GPUs. * Fixed compatibility with systems without systemd.

[link](https://steamcommunity.com/games/250820/announcements/detail/696524994028504197)