De momento no hay forma oficial de arrancar el OneNote de Office (el completo) usando el botón del stylus.
Hay formas "extraoficiales" como esta sacada de un foro (
https://www.thurrott.com/uncategoriz...-onenote-app):
1. Uninstall Universal OneNote by starting an elevated PowerShell session and running the following command.
Get-AppxPackage *OneNote* | Remove-AppxPackage
2. Launch regedit and go to HKEY_CLASSES_ROOT\onenote-cmd
3. Create a new Key "Shell"
4. Under shell create a new key "Open"
5. Under open create a new key "Command"
6. Under command edit the (Default) REG_SZ entry and enter path to the OneNote desktop executable. The easiest way I found was to open up the "OneNoteDesktop\Shell\Open\Command" registry key that was right below the onenote-cmd key and copy the string from there (without the /hyperlink "%1" ending) to the entry.