Scheduled notification doesn't arrive after app is killed when Application Entry Point is set to Game Activity

Steps to reproduce:

1. Open the Main project
2. Go to File > Build Settings and select Android Platform
3. Go to Edit > Project Settings > Player > Other Settings
4. Set Application Entry Point to Game Activity
5. Build and Run on a device
6. In the application press "[5s] Empty Notification + body"
7. Kill the app

Expected: Notification arrives after 5 seconds
Actual: Notification doesn't arrive

Reproducible with: 2.1.1(2023.1.0b6, 2023.2.0a4)
Could not test with: 2020.3.45f1, 2021.3.20f1, 2022.2.9f1 (Game Activity is not available)

Tested and reproduced on devices:

• VLNQA00467 - Galaxy S21 Ultra 5G (SM-G998B), CPU: Exynos 2100, GPU: Mali-G78, OS: 12
• VLNQA00460 - Google Pixel 6 (Pixel 6), CPU: Google Tensor (Whitechapel), GPU: Mali-G78, OS: 13

Notes:

• If the app is not killed, but only put in the background notification arrives
• Sometimes after the app is killed application crashes