In python, the wkb type of a QgsPoint will by default be determined from
the provided parameters, where Z and M will be added as required if the
wkbType is Undefined.
QgsPoint(x, y, z=nan, m=nan, wkbType=QgsWkbTypes.Undefined)
Thanks to the python API support of named parameters, it's also
straightforward to specify z, m and wkbType in any desired combination.
On the other hand, on C++ side it's often preferable to use
QgsPoint(QgsWkbTypes::WkbType wkbType, double x, double y, double z, double m);
due to the lack of named parameters which make it harder to specify a
specific type and the advantage of typesafety that makes it possible to
verload the first constructor with this one.