Traditional folders enforce a rigid hierarchy, which doesn’t align well with the way knowledge grows and connects. A note about “networking” might belong under “Technology,” but also under “Self-Hosting” - and forcing it into just one folder limits how you can retrieve the information and identify the connection between notes.
This is where digital gardening or tools like Obsidian shine. They let you create connections across topics without worrying about where a file belongs because knowledge isn’t linear, it’s a web.
In my Obsidian vault, I use Tags & Topic Notes to connect and explore my thinking.