QSystemTrayIcon::geometry returns wrong value

#include <QApplication>
#include <QMainWindow>
#include <QSystemTrayIcon>
#include <QMenu>
#include <QAction>
#include <QDebug>

class SystemTrayExample : public QMainWindow
{
    Q_OBJECT

public:
    SystemTrayExample(QWidget *parent = nullptr)
        : QMainWindow(parent)
    {
        initUI();
    }

private:
    void initUI()
    {
        QMenu *trayIconMenu = new QMenu(this);

        QAction *exitAction = new QAction("Exit", this);
        connect(exitAction, &QAction::triggered, qApp, &QCoreApplication::quit);
        trayIconMenu->addAction(exitAction);

        QSystemTrayIcon *trayIcon = new QSystemTrayIcon(this);
        trayIcon->setIcon(QIcon("./icon.png")); // Set the icon (replace with your icon path)
        trayIcon->setContextMenu(trayIconMenu);
        trayIcon->show();

        qDebug() << "Showing system tray icon at" << trayIcon->geometry();
    }
};

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

    SystemTrayExample window;
    window.show();

    return app.exec();
}
#include "main.moc"