QT_SCALE_FACTOR not work on Mac book Pro M2

Hi,

I built an application with 1920*1080 resolution on Windows.  it works well

When I run it on MacBook Pro M2, the window size isn't right resolution, look like 1440*700

Then I add QT_SCALE_FACTOR environment  to scale 0.5 ratio on it, it didn't work.

I checked the Screen::name(), and the value is null, maybe this is the reason.