https://www.theverge.com/2018/6/4/17426444/app-store-redesign-mac-macos-mojave-apple-wwdc-2018

Apple is finally overhauling the Mac App Store in macOS 10.14 Mojave, featuring an all-new design inspired by the similarly redesigned App Store introduced on iOS 11.

The new design has a central Discover feed just like on iOS, with featured stories on curated apps selected by Apple and with rich content and autoplay videos. Apple is also sorting out new Create, Work, Play, and Develop categories showcasing featured applications under those headings (similar to how iOS breaks out Games into its own section). Product pages have also been redesigned, with new video previews here and more prominent reviews.