But I'd settle for some better/less tautological documentation for how autoscale is supposed to work :)

Originally posted by @mwaskom in #17331 (comment)

We need a long-form tutorial like https://matplotlib.org/tutorials/intermediate/imshow_extent.html for autoscaling. This needs to cover

• margins
• 'sticky edges'
• what artists participate
• when / how the bounding boxes are collected
• what implicitly disables autoscaling
• how to explicitly enable / disable autoscaling
• when and how you need to manually kick off the autoscaling
• how to "manually" get the same effect