Apple Notes, Bear, Obsidian and Jotaid store notes in four different structures — and the structure decides which questions you can ask of them later.
Folders, Tags, Files, Entities: Four Ideas of What a Note Is
Appearance
Blog
Stop Managing Notes. Start Developing Concepts.
Zettelkasten, backlinks and knowledge graphs promise connected thinking and rarely deliver. Why the unit worth building around is the concept, not the note.