Windows11 style does not show underlying content of index widget.

int main(int argc, char **argv)
{
    QApplication a(argc, argv);

    QStringListModel model;
    model.setStringList({"test"});
    QListView view;
    view.setModel(&model);
    view.setWindowTitle("style: " + a.style()->name());
    view.setIndexWidget(model.index(0, 0), new QWidget);
    view.show();
    return a.exec();
}