Incoming calls are not handled correctly when Unity Player is not running in Windowed mode

How to reproduce:
1. Open the attached Project "1353293_FaceTime.zip"
2. Build and Run the Project
3. Call the machine the Build is running on using FaceTime

Expected result: The incoming call is displayed on top of the Application
Actual result: The incoming call is not displayed and instead a missed call notification can be seen after leaving the Unity Player

Reproducible with: 2020.3.40f1, 2021.3.12f1, 2022.1.20f1, 2022.2.0b11, 2023.1.0a15

Reproduced on: macOS 12.3 (Intel)

Notes:

• Different Fullscreen Modes in the Player Settings handle the call notification differently: Windowed -> incoming call is correctly displayed on top; Maximized Window -> Unity Player is sent to the background; Fullscreen Window and Exclusive Fullscreen -> incoming call does not appear and a missed call notification appears after leaving the Unity Player instead (even if the call attempt is still in progress)