Hiding the built Player Window stops HMD from rendering

Steps to reproduce:
1. Create a new project or a VR template
2. Add the attached script "HideUnityWindow.cs" to a GameObject
3. Connect Oculus Link to Quest 2
4. Build a Standalone Player
5. Observe in the headset how the view no longer renders or begins to flicker

Expected results: Hiding the built Player Window does not stop HMD from rendering
Actual results: Hiding the built Player Window stops HMD from rendering

Reproducible in: 2021.3.29f1, 2022.3.7f1, 2023.1.7f1, 2023.2.0b4

Environment tested on: Windows 10

Notes:
-Issue is not reproducible in the Editor
-Only reproducible when building a Standalone Windows Player
-Issue reproduces with both OpenXR and OculusXR plugins
-Issue reproduces with Vulkan and Direct3D11