This feature overhauls the older search experience in Illustrator. 'Discover' feature allows you to search for help, tools, hands-on tutorials, and articles within the Illustrator app. Discover panel offers contextually relevant help and learning resources to help you level-up and accelerate your workflow.

The panel is similar to what was shipped in Photoshop as well: https://helpx.adobe.com/photoshop/using/photoshop-discover.html

We would love to hear your feedback.