I believe you are talking about something completely different. DevonThink uses AI to analyze your entire document and looks for similar documents. This is similar to Google's "page rank." I don't recall voodoo pad having this feature.

bvasconcelos wrote:

If you are on a mac, you could try and see for your self.
I have both DEVONthink and Obsidian open right now in front of me and I
can assure that they do not share the same capabilities in this regard.