Title bar appears when minimizing WA_TranslucentBackground & FramelessWindowHint with QWebEngineView

import sys
from PySide6.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QPushButton
from PySide6.QtWebEngineWidgets import QWebEngineView
from PySide6.QtCore import Qt

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Title Bar Bug")
        self.setGeometry(100, 100, 800, 600)

        # Set translucent background and frameless window
        self.setAttribute(Qt.WA_TranslucentBackground)
        self.setWindowFlags(Qt.FramelessWindowHint)

        # Main layout
        central_widget = QWidget()
        main_layout = QVBoxLayout()
        central_widget.setLayout(main_layout)
        self.setCentralWidget(central_widget)

        # Minimize button
        minimize_button = QPushButton("Minimize")
        minimize_button.clicked.connect(self.showMinimized)

        # QWebEngineView setup
        self.web_view = QWebEngineView()
        self.web_view.setHtml("<h1 style='color: white; text-align: center;'>Hello, World!</h1>")

        # Add widgets to layout
        main_layout.addWidget(minimize_button)
        main_layout.addWidget(self.web_view)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec())