Qt for Python (PySide/Shiboken)

Hello! I wanted to create my own custom panel design instead of the system one, but the window cannot be dragged or positioned programmatically on Linux. I compiled it with Nuitka, but it still won't move—it always appears in the top-left corner. On Windows, everything works fine. I'm using the latest version of PySide6. If I'm not mistaken, Telegram Desktop is written in Qt, and their custom panel works perfectly on Linux.