How to reference OneNote in Word's Copilot?

I find that when I try to reference other documents in Word's Copilot (e.g. in the body of the document I want to summarize notes I took in OneNote). When I type the / all I see is word documents. When I click the 'reference a file' button, I only see word documents. When I type to summarize notes from OneNote, it does not show me any options to select a OneNote document. This is shown in a Microsoft demo video at second 23 in this video https://www.youtube.com/watch?v=B2-8wrF9Okc&t=23s. I am unable to replicate the experience they show in this video.

Additionally, I am unable to ask Copilot's chat to "summarize my onenote activity this week" or any other variation. In face, Copilot says this

"As a chatbot, I am not able to access or summarize the content of your OneNote documents directly. My capabilities are limited to providing information and assistance based on the data and tools available to me. However, you can use the OneNote application to summarize your notes by creating a summary page. This feature allows you to create a new page with links to the pages and sections you select, providing an easy way to organize and review your notes."

I am hoping this is an error and some guidance will resolve the issue, but knowing others are having the issue would be something.