I ran the whole scenario through an AI chat and it gave me this:
Microsoft Teams is designed to streamline collaboration, and part of this involves automatically creating a default OneNote notebook for each Team and channel. While this is convenient for many users, it can be limiting if you prefer more control over your notebook creation.
The behavior you're seeing—where a OneNote notebook is created even after removing the Notes tab—might be due to how Teams integrates with OneNote. It's possible that the underlying connection between the two applications is causing a notebook to be generated in the background, even if you're not actively using the Notes tab.
Potential solutions:
Check OneNote settings in Teams:
Go to your Team's settings.
Look for an option related to OneNote integration or notebook creation.
See if there's a setting that allows you to disable automatic notebook creation.
Check OneNote settings in the SharePoint admin center:
If you have administrative access, go to the SharePoint admin center.
Navigate to the settings for your organization's SharePoint site.
Look for options related to OneNote integration or notebook creation.
See if there's a setting that allows you to control how OneNote notebooks are created in Teams.
Contact Microsoft support:
If you can't find any settings to control this behavior, it's best to contact Microsoft support.
They can help you troubleshoot the issue and provide guidance on how to achieve your desired setup.
Additional considerations:
If you're able to disable automatic notebook creation, remember that you'll need to manually create a new notebook each time you need one. This might add a few extra steps to your workflow.