Removing window maximize button removes close button Windows 11

from PySide6.QtWidgets import QApplication, QLabel
from PySide6.QtCore import Qt
import sys


def main():
    # Create application
    app = QApplication(sys.argv)

    # Create window from QLabel
    window = QLabel('Example')
    # Resize window
    window.resize(300, 150)

    # Bug: Line below should remove the maximize button only, but also removes the close button on Windows 11:
    window.setWindowFlags(window.windowFlags() & ~Qt.WindowMaximizeButtonHint)
    
    # Removing the close button only works:
    # To test this, uuncomment line below, comment out line above
    # window.setWindowFlags(window.windowFlags() & ~Qt.WindowCloseButtonHint)

    # Show window
    window.show()

    # Main loop
    sys.exit(app.exec())


if __name__ == '__main__':
    main()