Some users seem to be getting an alert from the Play Store to start cleaning out their phones—one app at a time. In a move reminiscent of the app manager it released back in 2016, a notification is popping up to remind Android users to delete unused apps. If you get the notification and tap on it, you’ll end up in the Notification section of the Play Store. From there, you can tap again to get the list of apps you haven’t used in a while. It also shows how much space you can save if you take out these apps. As mentioned, this doesn’t seem to be showing up to all users. But if you tend to not fill your phone with apps you don’t use, you might not even get the alert at all.
Source: Android Police