According to this documentation, https://doc.qt.io/qt-5/qtwebengine-debugging.html , it should be possible to pass Chromium flags to Qt using either environment variables or command-line arguments. With PySide2 5.14.1 I have not been able to get either one to work.
For example setting the disable-logging flag and then instantiating QWebEngineView will launch the QtWebEngineProcess without that flag. sys.argv.append("----disable-logging") app = QApplication(sys.argv)
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