The Xperia Z5 is an unused phone donated from my friend named Guy because it drains all the battery in 1 hour and is smokin hot.
Has several circle icons, but freeform icon still exists.
The 2nd from the left (Xperia M) is not in the test, the version maxed out at just Android 4 something and nowadays people already moved on.
The result is the Project Settings page now has Default Icon, Legacy Icons, Round Icons, and Adaptive Icons. Now Unity, literally had to somehow unify this mess. Then just one API level later, introduces Adaptive Icon. Google introduced the first new specification in Android 7.1 as Rounded Icon. I thought Android device fragmentation was bad.