Reproduction steps:
1. Open the attached project “ReproProject"
2. Install the OVRmetric tool from Meta Developer Hub on Quest 2 device
3. On Quest 2 go to the library and enable the OVRmetric tool
4. Go to File > Build Settings > Player Settings and change Graphics APIs to OpenGLES3
5. Build And Run the project on Oculus Quest 2 device
6. Wait for the Scene to switch in Player and observe the FPS
7. Change Graphics API to Vulkan
8. Repeat steps 5 and 6

Expected result: FPS with Vulkan is about the same as with OpenGLES3
Actual result: FPS is lower with Vulkan

Reproducible with: 2020.3.46f1, 2021.3.20f1, 2022.2.9f1, 2023.1.0b5
Could not test with: 2023.2.0a4 (Crashes with a single line of Stacktrace “0x00007FFF5B984FD9 (KERNELBASE) RaiseException“ when building the project with Vulkan on 2023.2.0a4)

Reproducible with devices:
VLNQA00379, Oculus (Quest 2), Android 10, CPU: Snapdragon XR2, GPU: Adreno (TM) 650

Testing environment: Windows 10 Enterprise 21H2

Notes:

* Player built with 2022.2.9f1, ECS 1.0.0-pre.44 and OpenGLES3 shows 72 FPS and only 50 FPS when built with Vulkan