Workflowy is fantastic for keeping project journals, which are my form of incremental note taking. It's great at "behaving like memory" and documenting "a story of how I arrived at the ideas".

Currently, however, I'm drifting away from the journal format to a Zettelkasten, which I keep in Obsidian, a plain-text / markdown desktop app. I guess I could keep my Zettelkasten in Workflowy, but I rather like the dedicated desktop app approach for it.