The Obsidian roadmap mentions a “canvas plugin” in the “working on” section of the work in progress. Looks like work on it began several weeks ago.
You can use the Canvas view to organize notes visually. Canvas gives you infinite space to brainstorm, diagram and lay out your ideas. With Canvas view you can create mind maps, flow charts, org charts, moodboards, family trees and more.
This is a great idea. Good news from Team Obsidian.