A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
There is a file online, it is located in Documents folder in OneDrive which is created automatically, and there I can find my new file with my new note in a clean notebook. No other notebooks there, nowhere else to be synced from. Maybe I deleted that file while browsing OneDrive from PC. So it's not a clean experiment where I had only Android phone and only cleared space via system settings. And although I didn't delete notes and notebooks via OneNote app on any platform, maybe I somehow deleted the file, and clearing data via Android settings made me think it was the reason of data loss. Maybe it was not the reason, or was only the last event in the chain of events.