Adding on here...
The ability to filter References feels like a fundamental part of a linked outliner, but admittedly, that's probably because of my experience using tools like Roam / Logseq.
As the amount of information grows in a workspace, this becomes critical to finding information if you're using inline references. (The diagrams below hopefully show what I'm referring to.)
At the moment, it seems like even live searches can't narrow down this information (it has to be contained within the node, as opposed to indented underneath a reference to the node)
This is exactly what I am missing as well.