By default, after installation, PimaxXR becomes your OpenXR runtime. If you would like to use SteamVR's OpenXR support instead, you may use the following methods.

Preferred method

1. Open the PimaxXR Control Center (shortcut is on the Desktop and Start Menu)
2. Select SteamVR as your runtime

Manual method

1. Open SteamVR
2. Go to Settings
3. Toggle Advanced Settings to Show
4. Go to Developer
5. Click Set SteamVR as OpenXR Runtime