Android : White line at the top of the screen

I have a graphical issue when deploying on Android with :

• QtVersion : Qt6.2.2
• Android API level :  Android 10 (SDK 29)
• CPU architecture : arm64-v8a
• Android Device : Xiaomi Redmi Note 9

A white line appears at the top of the screen, as if the application could not cover the whole screen. This problem already existing on Qt5, and seems to be related to the HightDPIScaling option which is by default on Qt6+ versions.

A minimal example is given in attachment

Please reopen this issue : https://bugreports.qt.io/browse/QTBUG-87334