Can't lock Splash Screen in app.json to portrait

In this documentation:
https://docs.expo.io/versions/latest/workflow/configuration/
"orientation": “portrait” is not locking the splash screen in android and ios phone.

I also have tried everything from here to handle the orientation, but none of them can lock the splash screen to portrait https://docs.expo.io/versions/latest/sdk/screen-orientation/

When I open the phone in portrait mode, it’s working fine:

But the problem occurs when the splash screen is not locked by “orientation”: “portrait” here is what happened:

Please kindly help to fix this issue from app.json in Expo SDK.

Thank you very much