GUI: On Windows the native file dialog should be used instead of Qt file dialog
The file dialog has been switched to "always use Qt dialog instead of native one" in !36 (merged). The reason was "This allows the user to type in a path instead of navigating with mouse clicks."
However, under Windows this is not true. One can type the path also in the native dialog. In addition, the native dialog under Windows adds functionality a Windows user may be used to. Worth mentioning here especially the configurable list of favorites.
Therefore under Windows the native file dialog shall be the default.