Hi Joe!
This may be an interesting question, I think.
I have removed both OneNote and OneDrive.
I can't find any Microsoft account, where is it?
There are 3 accounts in Settings/E-mail: icloud, nlk, Telia JB, none of them is my Microsoft account.
When I reinstall OneDrive, it is immediately showing my files in the cloud,
So somewhere there is access to the Microsoft account, for sure.
Since I can't find it, I can't turn it off...
...
After a while, at least I found that I could log out from my MS account (from the person image in OneDrive).
I tried to set the recover switches for OneNote (both for 'no notebooks' and 'new logon'), and tried it again:
it just starts and disappears instantly (still in the active list, though).
No chance to log on again.
Then I tried to start OneDrive, and there I had to do a new logon to my MS account. With 2-factor authentication, just as normal.
OneNote still not behaving normally.
.. / Jan