Difference between OneNote group notebook and other OneNote notebooks

I was just wondering if it does make any difference if I use the OneNote notebook created automatically withing my group or if its also fine using a OneNote notebook that was created within the group (for example in a teams channel or within the SharePoint library (New => OneNote notebook)

Except that the main link in the SharePoint quicklaunch links to the main OneNote, I do not see anything "special" about the default OneNote notebook. Or am I missing anything?