> I just can't bring myself to go to the effort

That's what LLMs are best, actually. Go through all your stuff and painstakingly document, add tags, refer to other documents, etc

> Due to this, my Obsidian vault is pretty much a collection of a bunch of temporary to-do lists and then some folders with specific reference information

LLMs can also separate what information was only useful at a specific time vs more perennially useful notes.