DOC: Document the parameter *position* of apply_aspect() as internal

Superseeds matplotlib#23629. See matplotlib#23629 (comment)

lib/matplotlib/axes/_base.py

@@ -1881,6 +1881,11 @@ def apply_aspect(self, position=None):
         Parameters
         ----------
         position : None or .Bbox
+
+            .. note::
+                This parameter exists for historic reasons and is considered
+                internal. End users should not use it.
+
             If not ``None``, this defines the position of the
             Axes within the figure as a Bbox. See `~.Axes.get_position`
             for further details.
@@ -1891,6 +1896,10 @@ def apply_aspect(self, position=None):
         to call it yourself if you need to update the Axes position and/or
         view limits before the Figure is drawn.
 
+        An alternative with a broader scope is `.Figure.draw_without_rendering`,
+        which updates all stale components of a figure, not only the positioning /
+        view limits of a single Axes.
+
         See Also
         --------
         matplotlib.axes.Axes.set_aspect
@@ -1899,6 +1908,8 @@ def apply_aspect(self, position=None):
             Set how the Axes adjusts to achieve the required aspect ratio.
         matplotlib.axes.Axes.set_anchor
             Set the position in case of extra space.
+        matplotlib.figure.Figure.draw_without_rendering
+            Update all stale components of a figure.
         """
         if position is None:
             position = self.get_position(original=True)