Steps to reproduce:
1. Create a new 3D project
2. Import OpenXR 1.9.1
3. Import the attached "CustomPackage.unitypackage"
4. Reload "SampleScene.unity"
5. Connect Quest 2 to Oculus Link
6. Enter Play Mode and in the Hierarchy select the "XR Rig" GameObject
7. In the Scene View, under the Tracking Origin Mode Setting observe how "Floor" option makes the Camera stay at the floor level

Expected results: Height offset is applied to the Camera when Tracking Origin Mode Floor option is selected after entering Play Mode
Actual Results: Height offset is not applied to the Camera when Tracking Origin Mode Floor option is selected after entering Play Mode

Reproducible with: OpenXR 1.9.1 (2021.3.33f1, 2022.3.15f1, 2023.2.2f1, 2023.3.0a18)
Not reproducible with: OpenXR 1.8.2 (2021.3.31f1, 2022.3.12f1, 2023.2.0b16, 2023.3.0a12)

Reproducible on these devices:
VLNQA00609 - Oculus Quest 3 (Quest 3), CPU: Snapdragon XR2 Gen 2 (SM8550), GPU: Adreno 740, OS: 12
VLNQA00415 - Oculus Quest 2 (Quest 2), CPU: Snapdragon XR2, GPU: Adreno 650, OS: 10

Testing Environment: Windows 11
Not reproducible on: No other environment tested

Notes:
-If the Tracking Origin Mode is changed from "Floor" and back to it, issue no longer reproduces
-Issue does not reproduce when using other options besides Floor
-Forum thread: [https://forum.unity.com/threads/update-com-unity-xr-openxr-from-1-8-2-to-1-9-1-changes-tracking-origin.1515263/#post-9474268]