"App icons" refers to small images or symbols displayed on a device's screen to represent different applications or programs installed on it. These icons allow users to easily identify and access specific apps with just a tap. Full definition
You can also change the layout of app icons on your home screen and in the app drawer, allowing you to further change the sense of space. (androidauthority.com)
The home screen itself which i was greeted with for the first time came with a bunch of app icons which was a turn off for me and would be the exact unpleasant feeling. (phoneradar.com)
While I'm still not sure about the new circular app icons in Android Nougat 7.1, everything else is a welcome addition. (tomsguide.com)