The Chrome team remains committed to supporting them, and has no plans to remove or deprecate support.
The beforeinstallprompt event, and the appinstalled event have been moved from the web app manifest spec to their own incubator. Some productivity and entertainment applications also benefit from the extra screen real-estate created by removing the browser toolbars from the window in installed standalone or minimal-ui modes.
For example, if there's a set of users who use your PWA multiple times in a week, these users might benefit from the added convenience of launching your app from a smartphone homescreen or from the Start menu in a desktop operating system. When considering whether to promote install, it's best to think about how users typically use your PWA. 'Install App' button provided in the Spotify PWA In addition to the browser provided install experience, it's possible to provide your own custom install flow, directly within your app. Installing a PWA adds it to a user's launcher, allowing it to be run like any other installed app. Installation (sometimes formerly referred to as Add to Home Screen), makes it easy for users to install your PWA on their mobile or desktop device. Many browsers make it possible for you to enable and promote the installation of your Progressive Web App (PWA) directly within the user interface of your PWA.
