Android apps are already running on top of a Virtualisation Technology", both current ART (Android Runtime) and the previous one, Delvik, runtimes are virtual machines, process level virtual machines, but they do bytecode translation/JIT nonetheless.

If AVF allows running native code, it might actually be cheaper than the current arrangement.

I'm not Android expert in any way, but VM have nothing to do with virtualization. I think you're confusing something.

what does VM stand for?

What do you mean?

Literally, the title: ‘Virtual Machine as a core Android Primitive’ and the very first sentence: ‘The Android Virtualization Framework (AVF) will be available on upcoming select Android 14 devices.’

Android apps can already run native code, so there's no performance benefit.

Also, Java "virtual machines" and native virtual machines are two very different things, they shouldn't be equated.

Android apps performs better if built natively, Google might take some steps to enhance its performance.