Reproduction steps:
1. Create a new project or open an existing one
2. Disable "Render outside safe area" setting in Edit -> Project Settings -> Player -> Resolution and Presentation
3. Build and install on Android
4. Enable fullscreen for the app (Settings -> Display -> Full screen apps)
5. Open the built project

Expected result: Notch is visible on the built project
Actual result: Notch is hidden on the built project

Reproducible with: 2018.4.18f1, 2019.3.4f1 2020.1.0a26, 2020.2.0a1

Reproducible on:
N/A, Samsung Galaxy Fold (SM-F900F), Android 9, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00316, Samsung Galaxy Note10 (SM-N970F), Android 9, CPU: Exynos 9 Series 9825, GPU: Mali-G76

Not reproducible on:
VLNQA00322, Huawei P30 Pro (VOG-L29), Android 9, CPU: HiSilicon Kirin 980, GPU: Mali-G76

Notes:
Render outside safe area setting is not available on Unity 2017.4, therefore, the issue is not reproducible.