Qt for Python (PySide/Shiboken)

Does it work with previous versions? Differences between natively installed PySide vs official wheel inside a virtual environment? Which wayland implementation? The landscape is fractured, because Wayland is only a protocol specification, not an implementation. Some compositors (KWin) provide default decorations, and some implementations (Gnome…) refuse to do so and require applications to do it themselves via libdecor. (At least, that's what I know, that may be outdated on Gnome's side)