Gives developers the ability to add more data (descriptions and screenshots) to their PWA install dialog and gives users more insight into the apps they are about to install. This implements PWA richer install UI on desktop. See previous chromstatus entry for mobile - https://chromestatus.com/feature/6422599217184768
Most browsers have facilities to enable users to add a website to their homescreen. Several browsers provide the ability to install PWAs. Currently the context that’s available to convey is the website’s origin, as well as the name and icons made available through the Web App Manifest. This is different from other store mechanisms, on all platforms, that also share developer-provided information such as a description and screenshots. Microsoft’s Aaron Gustafson (cc’d) has proposed a Web App Manifest Application Information draft, through which we can obtain that information. Following this intent, Chrome for mobile has shipped a new, richer user interface that displays this information when the developer has provided it. https://chromestatus.com/feature/6422599217184768 Now on desktop we implemented a similar dialog using the same information obtained from web app manifest.
Explainers: https://github.com/w3c/manifest-app-info/blob/main/explainer.md