Android is a bit of a mixed bag. There is AOSP, the project to which Google contributes heavily but I'm not sure if there are phones in the wild which still use AOSP.
Samsung modifies it heavily (lots of OEM do mostly cosmetic changes but Samsung makes changes all the way down to kernel and also brings their own drivers - you couldn't run AOSP on Samsung devices unless you build your own flavour and backport drivers).
So yeah, you may be using Android but you're not using the open source version.
Android is a bit of a mixed bag. There is AOSP, the project to which Google contributes heavily but I'm not sure if there are phones in the wild which still use AOSP.
Samsung modifies it heavily (lots of OEM do mostly cosmetic changes but Samsung makes changes all the way down to kernel and also brings their own drivers - you couldn't run AOSP on Samsung devices unless you build your own flavour and backport drivers).
So yeah, you may be using Android but you're not using the open source version.
Definitely. There's a lot going on with this one.