Copilot for Work - Search in OneNote

If I use Copilot for Work at ask something it would be nice if it would use the informations in OneNote to find the right answer. As far as I know Copilot do not look in my OneNote Notebooks when I ask something. (Just if I directly use Copilot in OneNote, but not when I use Copilot for Work via Browser or M365 App or Teams)