No local storage == no go.
As of Version 15.22.1: Still no way to save your notebooks locally.
I have a fundamental problem storing my notes and data “in the cloud”. OneNote for Mac has no local storage capabilities, and forces users to store their confidential or sensitive information on Microsoft’s servers outside the users’ control.
I have a fundamental problem with that.
If there’s one thing Edward Snowden taught me it’s not to trust my data stored on other people’s servers.
I don’t use iCloud either.
SciFiFanGA about
Microsoft OneNote, v15.22.1