All the basic features of the real OneNote are still not available in the UWP app.
Here is a short list of major features that the UWP app still does not have
- Tag creation and tag search
- The ability to have lines on a page
- The option to save to the hard drive
Now, I know that Microsoft wants everybody to save to the cloud because that's "better" and for most people that may be true, but it should be an option. Telling people that notebooks are kind of available by accessing the cache is just wrong. There are some professions that cannot save to the cloud for legal reasons. Saving to the hard drive is a basic function of any program. - The ability to create templates
- Inserting and editing documents
All five of these features are basic to real OneNote that should have been made part of the UWP app before it was released. The article above has two images depicting features that are still unavailable. My apologies, but the best version of OneNote is still 2016 the UWP app is a useless to tinker toy, and always will be until these issues are addressed.