Missing Google Play Services for AR on Supported Device

[josefgrunig]

Summarize the bug: Vuforia does not trigger the Google Play Services for AR install request on supported devices. The app is built with Unity for Android and ARCore is included as Optional; the affected device is a Xiaomi Mi 11 (supported by ARCore) but for some reason it's missing the Google Play Services for AR. Since the service is missing, Vuforia fallbacks on its internal tracking technology but the phone is not on the Vuforia's supported device list and fails detecting the Ground Plane.

Observed problem Vuforia does not trigger the Google Play Services for AR install request on supported devices

Expected result Even if ARCore is Optional included I expect Vuforia to check for ARCore supported devices and perform a request install of the library: https://developers.google.com/ar/develop/unity-arf/enable-arcore#perform_runtime_checks

Reproducible steps Steps to reproduce the behavior:

1. Build the Vuforia Sample App and include Arcore as Optional
2. Delete the Google Play Services for AR app
3. Launch the sample and try detecting the ground plane on a Vuforia NON supported device like the Xiaomu Mi11

Affected Engine version: Vuforia: v10.21.3. Unity 2022.3.16f1 ARCore 1.36

Affected platform:

• Android 14 with HyperOS 1.0.6

Affected device:

• Xiaomi Mi11