QMainWindow.setGeometry not work in Linux

I created a Qmainwindow and set it's geometery using setGeometery(x, y, width, height).

width and height parameter works well but x and y. I tried to show the window in my screen center, but the x and y patameter DID NOT work in setGeometery function. 

I also tried "move(x, y)", but this function did not work, too.

my code is here:

# PySide6.__version__
# '6.5.0'

# Ubuntu 22.04 Wayland
# Gnome 42.5

import sys
from PySide6.QtWidgets import QApplication, QMainWindow

if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = QMainWindow()
    win.setGeometry(1902,123,421,123)
    win.show()
    win.move(999,6666)
    sys.exit(app.exec_())

I also tried to drag the window with mouse, and connect the move signal to a function to show geometery. However, the x and y value dose not change even I drange the window to other location. the values are (0,0) forever. This bug does not exist in PyQt5 but PySide6.