Why on earth Microsoft see this as acceptable is beyond me? All the content needs to be in one place so that elements or the whole thing can be easily restored. We have Barracuda Cloud-Cloud backup for our MS365 but there is no way it can cope with restoring this. Some content is in the underlying Teams SharePoint stored in Site Contents, other content is in Site Assets and the actual students work hidden in their OneDrive!? This makes impossible to restore from backup (unless anyone on here knows a way). This seems to be worsened by the fact that a Class Notebook is a consolidation of content from several places. By default History is turned off on Class Notebooks and even when manually enabled, it does not track pages or sections deleted by students in the web client. Deleted content disappears into a blackhole.

In our experience, this does not work, the deleted pages do not go into either the teacher or the students OneDrive and there is nothing in the OneNote/Notebook recycle bin. According to Microsoft guidance, deleted pages can be restored from the authors OneDrive: Recover deleted Class Notebook files from the OneDrive Recycle bin - Office Support ().

Restore deleted onenote page