Underline for context menu does not follow windows standard behaviour

Qt follows the windows system preference to show or not show access keys (the underlined letter in menu items) correctly for basic menu's. However, it seems that 1 small detail of standard windows behaviour is not followed: taking notepad and visual studio as an example, if I bring up a context menu using the mouse, no underlined access keys are visible. However, if I bring up the context menu using the context menu key on my keyboard (or the shift+f10 key combo), access keys are underlined in notepad and visual studio, but not in Qt applications.

On top of that, I cannot find any way to work around this (I would like to be able to tell my context menu to show the access keys). All I found so are solution to create a style proxy ( https://doc.qt.io/qt-5/qproxystyle.html#details ) which does this globally.