With other words, are notes in Roam/Obsidian/Logseq/Joplin/Dendron useful on the long term? Is the graph nature of notes a "plus" or just a distraction? Do you query your notes in a way that the results are more helpful than using a "flat wiki" (one or few text/markdown files)?
I use a "flat wiki" or despite not using org-mode, I believe it may be customized to "god-mode" _IF_ you take (plenty of) time to do it. "Wiki notes", by the other hand, seem a waste of time but probably I didn't understand them yet.