I think we're seeing another big step on the path to the deprecation of ChromeOS.
Back in June this year, they were "embracing portions of the Android stack, like the Android Linux kernel and Android frameworks, as part of the foundation of ChromeOS"[0]. Now they're enabling a Linux VM on Android, which is the inverse of what they did on ChromeOS under the ArcVM moniker, i.e. running Android in a VM[1].
[0]:https://chromeos.dev/en/posts/building-a-faster-smarter-chro...
[1]:https://9to5google.com/2019/05/24/chrome-os-android-apps-vm/