https://www.bleepingcomputer.com/news/microsoft/wish-list-and-cart-coming-to-the-windows-10-microsoft-store/

According to screenshots posted to Twitter, Microsoft is currently performing an A/B test of new features for the Microsoft Store. These features include a Wish List, shopping cart, and new navigation layouts.

The addition of a Wish List and Cart to the Microsoft Store has been a popular request for some time and looks like Microsoft is gearing to roll these out soon. To access the Wish List, users will be able to click on the Microsoft Store menu and select "My Wish List" as shown in the image below.