@Carlo Lamanna
Thank you for your post!
I reached out to my team regarding this issue and was able to replicate what you were seeing as well. Unfortunately, getting the "notes" section of an Enterprise App is currently not supported.
If you'd like, please feel free to create a feature request using our User Voice, or Microsoft Graph Feature Requests forum.
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.
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