The outliner plugin is promising but suffers from multiple issues.
Sometimes when typing ![[ and mousing over the list, it disappears and prevents you from selecting a note.
There is no way to visually identify the difference between an embed and the present note other than the tiny link icon at the top right which is easily missed.
It suggests you can use style settings but there’s no style settings section.
And more…
I will post what I find on the github. Hopefully they continue to develop it because I currently don’t trust it’s not going to mess something up unintentionally.