Modern OneNote (OneNote for Windows 10 / OneNote 365) is deeply integrated with the Windows operating system and Microsoft cloud services. It relies on registry keys for add-ins, printer drivers (OneNote Printer), and local cache systems. Because of this deep integration, Microsoft does not offer an official, standalone portable executable (.exe) of modern OneNote.
While there is no official "PortableApps" version of the modern OneNote application released by Microsoft, users can achieve a portable workflow through a few different methods. This write-up explores the definition, the current landscape, and how to make your notes truly mobile. onenote portable
This is what most experienced OneNote users actually do: Modern OneNote (OneNote for Windows 10 / OneNote