Thank you for reworking the sticky notes <3 . They are almost perfect now.
One thing is still impractical though.
All sticky notes open to the lower right - regardless of their position on the page. It would be great if they intelligently recognized the page borders and opened in such a way as to stay completely visible.
Reason: Many textbooks and almost all scientific papers have a 2 column layout with only a narrow gap between. Is is only natural to place notes for the right column in the right margin. See image.

(Another but minor improvement: When a document is not shared/ collaborated on the default for new sticky notes should be that the author name is hidden)