Linux kernel, a very minimal userland, the Android VM on top of that.
Android is arguably on a path to becoming a dominant if not the dominant embedded system for consumer devices. I don't say this with any joy whatsoever.
Android is dying.
Chine companies have made their own OS to replace it. Google is bringing Fuchsia to replace Linux kernel to get total dominance over stack.
List goes on.
If this[1] is what "dying" looks like, then it's not so bad.
Android still accounts for over 72% mobile OS market share, with iOS far behind in second place at a mere 27%, and everything else is trivially insignificant.
