Let's take the example of QStyleOption :

Doc : https://doc.qt.io/qt-6/qstyleoption.html#public-variables

Current stubs QtWidgets.pyi:6986 :
 

    class QStyleOption(Shiboken.Object):

        class OptionType(enum.Enum):

             [...]

        class StyleOptionType(enum.Enum):

             [...]
 
       class StyleOptionVersion(enum.Enum):
             [...]
 
The public variables are missing.
 
In PySide6-stubs, we created a script to add the following :
 
class QStyleOption(Shiboken.Object):

    direction: PySide6.QtCore.Qt.LayoutDirection
        fontMetrics: PySide6.QtGui.QFontMetrics

    palette: PySide6.QtGui.QPalette
    rect: PySide6.QtCore.QRect
    state: PySide6.QtWidgets.QStyle.StateFlag
    type: int