Main point: We often don't need that much organization. Organizational structures should be afterthoughts.
Have you ever taken yourself in building intricate folder structures for data that doesn't exist yet? And then found yourself in doubt on where to put a file next time you need to add one? Or maybe you have worked on a project and then, months later, you need to reenter the project structure just to find that you intuition on the subjects has changed enough that the old organization does not make sense anymore.
Well, I am confident that it is normal and we all do it. Cleaning up is nice. Showing underwear in the underwear drawer also cleans out our inner mess. but with most intellectual thoughts it is not so easy to put them in single boxes. They usually fit into intricate networks where a thought, or all kinds of intellectual work, can be reached from several thought fibers.
Hence, instead of organizing work into conceptual boxes, it makes sense to think about rediscovery and explorability.
Most operating systems are already now attempting to banish folder structures in favor of search mechanisms. For many it is more normal to press the windows button and just search for the program or file they want (nostalgia alert: In my youth we had windows 98 with only nested menus with programs and folders with files).
Writing my own notes and my journal I basically just have all files in one big folder with text files. I can search in the file-content using VS Code. I can search for specific filenames and I can link files together using tags. Here I have 2 means of information retrieval: The exploitative where I remember exact strings of what I need and the more contextual / explorative where I find the material based on it being "something along the lines of ...".
I find it interesting to explore what the best tools are to explore information without knowing what I want. Currently I do that in Spor.