How to reproduce:
1. Open the attached “IN-29883“ project
2. In the File → Build Settings click Build And Run
3. In the Player click the "Sleep 1500 ms on pause" button
4. Click the device home button
5. Wait 3 seconds and click on the app icon

Expected result: The app continues to run, and no splash screen appears.
Actual result: The app restarts and the splash screen appears.

Reproducible with: 2021.3.17f1
Could not test with: 2020.3.46f1, 2021.3.21f1, 2022.2.11f1, 2023.1.0b8, 2023.2.0a6 - Editor PlaybackEngine is modified, cannot build.

Built on: macOS 13.2 (Intel)

Reproducible on devices:
VLNQA00334 - Xiaomi Mi A3 (Mi A3), CPU: Snapdragon 665 SM6125, GPU: Adreno 610, OS: 11
VLNQA00363 - Galaxy Z Fold 2 5G (SM-F916B), CPU: Snapdragon 865 SM8250, GPU: Adreno 650, OS: 10
VLNQA00331 - HUAWEI P20 lite (ANE-LX1), CPU: HiSilicon Kirin 659, GPU: Mali-T830, OS: 9
VLNQA00134 - Samsung Galaxy S8 (SM-G950F), CPU: Exynos 9 Octa 8895, GPU: Mali-G71, OS: 9.0.0
VLNQA00277 - Asus ROG Phone (ASUS_Z01QD), CPU: Snapdragon 845 SDM845, GPU: Adreno 630, OS: 8.1.0

Note: The user has modified these files:
\2021.3.17f1\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\mono\Development\Classes\classes.jar
\2021.3.17f1\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\mono\Release\Classes\classes.jar
\2021.3.17f1\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\il2cpp\Development\Classes\classes.jar
\2021.3.17f1\Editor\Data\PlaybackEngines\AndroidPlayer\Variations\il2cpp\Release\Classes\classes.jar