I would prefer something like this for popup notes: An icon is displayed when the note is collapses. When the icon is clicked the popup appears on the side of the document with an arrow-like line pointing to the point where the icon was before (the icon disappears when the popup is open).

I've attached some pictures of other document viewers implementation of the popup note to better explain the idea.

This should be assigned to the visual design group in order to have a proper visual design of this feature. Is it possible to flag this bug as VisualDesign?

Reproducible: Always