What Does App Drawer Mean?
An app drawer is a feature in a smartphone operating system that shows all of the applications installed on the device. Applications are typically represented by icons in a menu that may resemble the home screen of the device, or they may be listed in a “details” lined format.
Techopedia Explains App Drawer
One of the big differences between the app drawer and the home screen of the device, if both of them use icons, is that the home screen can be customized to whichever applications the user wants to feature. An app drawer, by contrast, is a complete list of everything installed on the device and cannot be customized. Think of the app drawer as the “permanent record” of all installed applications.