The update test comes as part of the newest Windows 11 Insider Preview Build. It will hopefully alleviate some of the current unevenness while navigating the Xbox app. The widget will take you to the Xbox app where you'll be able to install your favorite games on your PC and see game reviews.
According to a recent post on the official Windows Insider blog, Microsoft is testing an Xbox Game Pass widget with Windows Insiders. The widget will make it even simpler to view the most recent additions, upcoming game departures, and other titles from the featured genres on Game Pass.