Incomplete autocomplete support via .pyi files

When using QT Creator or Visual Studio Code to write PySide6 Code the autocomplete feature is is missing some entries such as signals that can be emitted from QWidgets like QPushButton.clicked or stuff like QChartView.setRenderHint()

The same issue was already discussed for PyCharm in this bugreport and was fixed or at least majorly improved: https://bugreports.qt.io/browse/PYSIDE-1079

To me it seems like this is caused by incomplete .pyi files that don't cover all possible cases but I don't know if this can simply be fixed there. Thanks in advance for your support!