

Could Obsidian be turned into a tag-centered network?
I'm trying to structure my Obsidian vault in a way that is closer to network science, but I keep running into a limit that might just be built into the app.
From what I can tell, Obsidian treats links between notes as the main edges in the graph, while tags are more like secondary metadata. What I actually want is almost the opposite. I would like tags, especially nested tags, to be the central nodes of the network, with notes acting only as bridges between those tags. In other words, I want the graph view to show relationships between tags and subtags, not mainly between individual pages.
If I have #setup/diary and #setup/research, I see that as a compact hierarchy, where setup is the shared axis. But the graph view does not seem to read that as a broader conceptual unit. In some cases, it even looks like there are duplicates or disconnected pieces (Fig. 1) where, for me, there should be a single semantic node. I do not want to replace nested tags with huge lists like #setup #diary #research, because the whole point of something like #setup/diary and #setup/research is to compress a conceptual hierarchy into a shorter and cleaner syntax. The shared prefix already expresses the relationship without making me repeat everything manually.
The problem is that Obsidian does not seem to interpret that hierarchy semantically. Sometimes I end up with two separate “setup” nodes in the graph, or concepts that should be connected stay disconnected unless I force extra references in other notes (Fig. 2). But that feels artificial, because it does not reflect the real content of the note, it is just a workaround to satisfy the graph view.
So my question is, is there any way, native or via plugin, to make Obsidian treat nested tags as a real conceptual hierarchy inside the graph view? In other words, as a truly relational structure in the graph. Can the graph show mostly connections between tags and subtags, with notes acting only as mediation?