https://www.bleepingcomputer.com/news/google/google-to-kill-chrome-apps-across-all-platforms/

Google announced that it will slowly phase out support for Chrome apps on all operating systems until they will completely stop working in June 2022 for all users.

Chrome apps are HTML5, CSS, and JavaScript-based web apps that can be installed via the Google Chrome browser for a user experience comparable to that of native applications.