Unjoined Azure AD. Where are OneNote files?

I did try:

https://www.experts-exchange.com/questions/29174726/Moving-one-and-only-user-from-Azure-AD-and-keeping-Office-365-OneDrive.html

and

https://www.experts-exchange.com/questions/29174961/Removing-Azure-AD-User-profile-from-workstation.html

Now the User is trying to find his OneNote files.  I guess he did find some but not all.

The original User profile files remain on the workstation.
I have copied all of the c:\Users\[originaluser]\Documents files over to the new user profile files.
Yet, OneNote files appear to be missing.
That's the sort of thing I was trying to avoid by pinpointing them.

Any suggestions?