It’s helpful to hear about your workflow. That sounds effective especially if you are crafting your note names and the wording of daily notes with this in mind. Thanks for sharing.
Another possible implementation to address this would be to sort all outgoing links based on the note’s headings; and the pane could focus on the heading the cursor is within. Here is a semi-relevant link where the request is instead to sort backlinks by headings: Option to sort backlinks by heading
Personally, I actually like your idea based on the word, but perhaps the feature could work on multiple levels: word, block, heading, and note.
Good luck! I hope this becomes a feature or plugin at some point. I would use it.