A web of notes, or a binder for the draft.
Obsidian is built for linked thinking. For a story bible, a cast of characters, and the tangle of a world, the graph of notes is a real pleasure and a real tool. Many writers keep their lore there for years.
Drafting the novel is a different shape of work. It wants a continuous page and a binder that holds scenes and chapters in order, not a graph. DraftProse is built for that, while keeping the plain-text, Markdown feeling that Obsidian writers value.