A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Thank you for your effort, which in my case fails!
I have very few notebooks on https://onedrive.live.com and they cannot be deleted by right click. Right click produces Open | Share - and that's it. No delete.
I don't seem to have a "Recent" list in OneNote
So neither your 1) or 2) work for me. There seem to be lots of versions of Microsoft OneNote, perhaps that's it - my version does not correspond with yours.
What I do have, is something called "More Notebooks" which has Notebooks which I don't use. What's tempting about them is that hovering over them produces "Notebook location...". Some people believe that if you can find the location, you can delete the Notebook. But in this case, Microsoft refuses to open the location. So that's no good.
App Launcher and select
OneDrive.