If this helps, it's designed for unstructured information storage, so fundamentally you use it as you'd use a notebook with the exception that organisation is something you can do ad-hoc. For example ...

Microsoft will expand the use of its Fluid components to a wider range of productivity and collaboration tools, including Outlook, OneNote, and Whiteboard — part of the company’s ongoing effort to ...

Ever find yourself drowning in a sea of notes, ideas, and to-do lists, wondering how to keep everything organized? You’re not alone. Many of us struggle with managing our information efficiently. But ...