OneNote API default location when creating a page

Question

I'm using the OneNote API for a browser extension to create a page in OneNote. I'm learning JavaScript, and I'm not quite up to the task of using React sample code for the section picker, so I'm just trying to use a POST request on https://graph.microsoft.com/v1.0/me/onenote/pages. It works, but how do you set this default location? I know I could set the notebook/section rather than using ...onenote/pages, but again, I'm not quite up to that coding challenge yet of getting that choice from the user.

Using the pages API, it's currently saving to the Quick Notes section of my Username Notebook, which I don't use. I tried changing the Quick Notes section setting in the options of the Windows app, but that doesn't seem to impact the API. I was really hoping the user could set a default location outside my browser extension until I'm ready to pull in the sample code for the section picker.