ScrollPhysics currently has hard-coded single view assumptions in two places, see the WidgetsBinding.instance.window in the snippet below:

In a multi-viewed world, this will not work anymore because the ScrollPhysics have no idea what view/window the scrollable they control is in. We need to refactor this, i.e. either the ScrollPhysics somehow need to look up the current view via View.of(context) or the relevant information need to be passed in.