Reproduction steps:
1. Open the user's attached "LocalPushNotificationSample.zip" project
2. Build and Run for Android
3. In the Player, write "15" in the "Input elapsed seconds..." text box
4. Press the "Set Notification" button

Expected result: Notification appears on the phone after 15 seconds
Actual result: Notification appears on the phone after ~26 seconds

Reproducible with: 2.0.1, 2.0.2 (2019.4.39f1, 2020.3.35f1, 2021.3.3f1, 2022.1.1f1, 2022.2.0a14)

Reproducible with these devices:
VLNQA00458, Google Pixel 6 (Pixel 6), Android 12, CPU: Google Tensor (Whitechapel), GPU: Mali-G78

Not reproducible with these devices:
VLNQA00468 - Huawei - (ELS-NX9), Android 10, CPU: HiSilicon Kirin 990 5G, GPU: Mali-G76
VLNQA00407 - Samsung Galaxy Z Flip3 5G (SM-F711B), Android 11, CPU: Snapdragon 888, GPU: Adreno (TM) 660
VLNQA00264 - Samsung Galaxy S10+ (SM-G975F), Android 10, CPU: NOT FOUND, GPU: Mali-G76
VLNQA00001, Google Pixel 2 (Pixel 2), Android 11, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00225, Qualcomm null (SDM845 for arm64), Android 8.1.0, CPU: Snapdragon 845 SDM845, GPU: Adreno (TM) 630
VLNQA00288, Samsung Galaxy J7 (SM-J730F), Android 8.1.0, CPU: Exynos 7 Octa 7870, GPU: Mali-T830
N/A, Huawei - (NOH-NX9), Android 10, CPU: NOT FOUND, GPU: Mali-G78
VLNQA00316, Samsung Galaxy Note10 (SM-N970F), Android 9, CPU: Exynos 9 Series 9825, GPU: Mali-G76
iPhone 11 Pro Max (iOS 14.4)

Could not test with these devices:
VLNQA00110 - Samsung Galaxy Note2 (GT-N7100), Android 4.4.2, CPU: Exynos 4 Quad 4412, GPU: Mali-400 MP ("Build_Failed_Older_SDK" error)

Note: The larger elapsed time is, the larger the delay is