Just use Obsidian without using folders, then? They’re completely optional.

Can you clarify what you mean about the folder structure? As far as I know, Obsidian doesn’t change up the directory structure at all; it just uses what’s already there: if you’ve got folders, you’ll see them in Obsidian. If you don’t, all the notes will be in one big directory.

Either adopted heir of a wealthy uncle, or gardener.