Update OpenXR plugin information (#5042)

tutorials/vr/vr_primer.rst

@@ -129,8 +129,7 @@ in the `GodotVR Repository <https://github.com/GodotVR>`_.
 * `Godot OpenHMD <https://github.com/GodotVR/godot_openhmd>`_ supports OpenHMD, an open source
   API and drivers for headsets.
 * `Godot OpenXR <https://github.com/GodotVR/godot_openxr>`_ supports OpenXR, an open standard
-  for VR and AR software. This plugin is early in development, only supports Linux and requires
-  extra setup described in the repository.
+  for VR and AR software. Tested with SteamVR, Monada and Oculus OpenXR runtimes.
 
 These plugins can be downloaded from GitHub or the Godot Asset Library.