This is confusing me, too, after reading the help page. I don’t want to create a new vault, but migrate my current vaults. I open the app, as the help file says, but no Obsidian folder is created on my Mac. (Help page says, “To setup a synced vault through iCloud Drive, you must first install and open the Obsidian iOS app. This will automatically create an app folder called “Obsidian” under your iCloud Drive, with a logo of the Obsidian app.”)