I attempted to handle some of what you're suggesting via the plugin ecosystem utilizing a vector database for RAG, and LLMs to auto-suggest tags or related docs. None of the plugins seem to get this quite right. The extensions were pretty brittle, and limited in terms of what they could do with the open doc. I now do most of my new note creation/editing and organization through cursor and custom built agent flows. The obsidian app is now just for mobile access and sync.