Hmm, in this case, Notado is more like a note-taking system than a bookmarking system. Highlights are just notes that connected with a link. Reminds me of https://lazy.so/, it has a very similar workflow [^1], and the notes of a same link are naturally aggregated as links are entities connect with notes.

[1]: https://www.loom.com/share/c56e982f86cc42ef93be31c92570c5ce?...