How to reproduce:
1. Open the attached project ("1406834_20212.zip")
2. Build and deploy the WebGL project
3. In a browser visit the URL/IP of the web server the project was deployed with
4. Observe the quad and/or the JavaScript Console

Expected result: Back camera is rendered on the quad, WebCamTexture.devices returns the number of the cameras the device has
Actual result: Front camera is used as a fallback and rendered on the quad, WebCamTexture.devices returns 1 camera

Reproducible with: 2021.2.14f1, 2022.1.0b10, 2022.2.0a7
Could not test with: 2019.4.36f1, 2020.3.30f1 (does not ask for camera permissions)

Reproducible on:
iPhone 13 mini (iOS 15)
iPad 6th generation (iOS 14.4.2)

Not reproducible on:
VLNQA00264, Samsung Galaxy S10+ (SM-G975F), Android 10, CPU: NOT FOUND, GPU: Mali-G76

Note:
- Not reproducible with iOS Platform
- Tested on mobile Safari/Chrome
- WebCamTexture.devices.Length is logged in the JS Console (accessible through chrome://inspect or by connecting to the mobile device via network on desktop Safari (Develop -> "Name of device" -> "IP of device")