A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Similar to Steves999, the symptoms I reported above have changed / improved overnight (its now 8:08am GMT+10)) in Australia.
In the OneNote web client, the Notebooks sections / pages are now opening after a relatively short delay. The endless spinning wheel, apparent over the last 3 days appears to have disappeared, and the pages are now rendered.
However, the saving of changes in some Notebooks is either slow, or doesn't appear to happen / complete (in the web browser client).
It seems like there has been a dramatic improvement overnight but it still seems like there are insufficient resources to process the load (reads are ok, but write or update functions are noticeably slow / not completing). Perhaps those that are not completing are now corrupt???
The Windows 10 OneNote Desktop Client now appears to be connecting to the internet / teams / sharepoint storage location. It is no longer stuck in the 'Saved Offline (error)' state.
I'm guessing Microsoft have done something to improve either the OneNote Education tenancy functionality, or the connections / infrastructure / resources where our Sharepoint Data is stored at rest in Australia, or our Teams data is stored at rest in "Asia Pacific".
I've not noticed any new or historic M365 Health incidents / acknowledgements posted overnight - it would be helpful to have some acknowledgement / post incident report from Microsoft (especially when we've still got a Premier Support Case open and the assigned MS Associated engineer / team is debating whether they should escalate our reported issue to the MS Product Development Team.