I’d like to use it for low-friction, almost exploratory review of my notes – that is, to be able to filter the graph by tags (so I can see all notes on a particular topic), then pick a note on a concept pertaining to the topic that I’m slightly fuzzy on, then “follow” the graph from that concept to connected note-nodes to remind myself of the context, and thereby get quickly myself back up to speed on the topic, especially if I haven’t engaged with the topic recently.
But this will of course require lots of enhancements to the graph view: filters, the option to open notes in new panels, etc.