How to Install VIVE OpenXR Plugin
1. Download VIVE OpenXR unitypackage
You could check the release information from VIVE Software GitHub
2. Import the unitypackage file in the Unity editor.
How to import : Unity tutorial
3. Select the menu on the Unity UI "VIVE/OpenXR Installer", press "Install or Update latest version".
4. For "Install specific version"
Step 1 : Copy the release version from Here
Step 2 : Paste the version to install the specific version. (For example: "2.0.0")
If you can't find the version we provide on github, please refer the following tutorial to download: Here