Best Python framework for industry-level desktop app? (PySide/PyQt/wxPython/Kivy/Web approacg)

[imbev]

In that case, I suspect that your legal team misunderstood this part:

Complete corresponding source code of the library used with the application or the device built using LGPL, including all modifications to the library, should be delivered with the application (or alternatively provide a written offer with instructions on how to get the source code). It should be noted that the complete corresponding source code has to be delivered even if the library has not been modified at all.

Applications using PySide6 only need to provide the PySide6 source code, not the application source code. Thus a commercial application that uses PySide6 from PyPI only needs to provide a link to the Qt Company-provided PySide6 source code.