I added a OneNote (via "+" Tab) in a Team a few months ago and in that Teams OneNote ("Team A") I can only see the OneNote section that corresponds to the channel (similar thread about this here).
I started a new team a few days ago ("Teams B") and in this Teams OneNote I am able to see all sections of the notebook in Teams and even add sections, in any channel. This is different than the Team A behaviour and I'm trying to figure out why and how to change one of them, for consistency.
I like the ability to see the whole notebook in any channel (unless we can modify membership by channel in future), but I would also like the ability to have the channel specific section of the Notebook be the default when someone clicks the OneNote tab link in the channel, for ease of use.
Does anyone have any insight here about why the two different behaviours and how to modify?