The QGIS WFS provider has been improved to look in the response to the GetCapabilities request (if using WFS 2.0) if the IsPoint, IsCurve, IsSurface extended filter functions are present.
When such a layer is added to the project, a "Select Items to Add" dialog box is displayed.
This enables the user to select one or several layers among ones of NoGeometry, MultiPoint, MultiCurve, MultiSurface, GeometryCollection types.