Why does the combobox look disproportionate when applying the fusion style?

[lincoln]

Why does the combobox, when its options are displayed, look so disproportionate and so poorly implemented visually compared to the native operating system style when the "Fusion" style is applied in a Windows 11 24H2 environment with Qt 6.10?

#include "facturadormw.hpp"
// #include "logindialog.hpp"

#include <QApplication>
#include <QStyleFactory>
#include <QFile>

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

  a.setOrganizationName("SWSystem's");
  a.setApplicationName("FacturadorSW");
  a.setApplicationVersion("1.0");

  a.setStyle(QStyleFactory::create("Fusion"));

  FacturadorMW w;
  w.show();

  // LogInDialog logIn;
  // logIn.exec();
  return a.exec();
}

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