Unity XR Input can be used to access input data from onAirXR Client.
Unity - Manual: Unity XR Input
Add “XR Interaction Toolkit” package in Package Manager.
Import “Starter Assets” sample of XR Interaction Toolkit package as shown below.

Open “DemoScene” in above Starter Assets.

Play the editor, connect using onAirXR Client App and try various interactive experiences in DemoScene.