Slot Executed in Signal's Thread Even With Auto & QueuedConnection

import sys

from PySide6.QtCore import QObject, Signal, QThread, Qt, Slot
from PySide6.QtWidgets import QMainWindow, QApplication


class Worker(QObject):
    update = Signal()

    def run(self):
        print(f"worker: {QThread.currentThread().objectName()}")
        self.update.emit()


class Window(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        worker = Worker()
        thread = QThread(self)
        thread.setObjectName('test thread')
        worker.moveToThread(thread)
        thread.started.connect(worker.run)
        worker.update.connect(self.update)
        thread.start()

    @Slot()
    def update(self):
        print(f"window: {QThread.currentThread().objectName()}")


if __name__ == '__main__':
    app = QApplication()
    w = Window()
    w.show()
    sys.exit(app.exec())

worker: Qt mainThread
window: test thread

import sys

from PySide6.QtCore import QObject, Signal, QThread, Qt, Slot
from PySide6.QtWidgets import QMainWindow, QApplication


class Thread(QThread):
    update = Signal()

    def run(self):
        print(f"thread: {QThread.currentThread().objectName()}")
        self.update.emit()


class Window(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        thread = Thread(self)
        thread.setObjectName('test thread')
        thread.update.connect(self.update)
        thread.start()

    @Slot()
    def update(self):
        print(f"window: {QThread.currentThread().objectName()}")


if __name__ == '__main__':
    app = QApplication()
    w = Window()
    w.show()
    sys.exit(app.exec())

2025-01-21 18:19:49.155575-0500 qt_test[86901:106814649] Worker::process  "test thread"
2025-01-21 18:19:50.033013-0500 qt_test[86901:106814599] Window::process  "Qt mainThread"