>>396178626
It's a set of standards. SteamVR is already OpenXR compliant. It used to use OpenVR while Oculus used something proprietary, so developers would have to make two different versions of their games for different platforms. Now it should be possible to make one version of a game that runs on both with minimal differences.

The standards include things like how the buttons are referenced, for example the lower face button on both Index and Touch controllers is referenced in the same way so the game will naturally work the same on both controllers without having to make a control scheme specific to both and will also work on future OpenXR compliant controllers. It also means that one analog input method, a stick or a touchpad, is the standard, so the touchpad on Index should always be an optional input method to prevent the game being unplayable on other controllers.