Separate commits show additional work on this being done on Celeron N3150 (Braswell) devices, as well as aarch64 (64-bit ARM) systems, indicating that support for Crostini on other Chromebooks is being actively developed. So far, Crostini has only been seen on Google's Pixelbook laptops, which command a hefty premium over Chromebooks from other companies.
SEE: Securing Linux policy (Tech Pro Research) In an article by TechRepublic's Alison DeNisco Rayome in Feburary, Crostini was tipped as a new way to use Linux on Chrome OS devices without the need to use Crouton, which required enabling developer mode, thereby disabling most of the security functions of the device. However, that functionality may already be covered by the recent addition of Crostini containers. According to a post at XDA-developers, it seems possible that this could be used for non-Windows OSes, such as Linux, or whatever Google Fuschia actually is.
Most of the relevant code is hidden behind the private gerrit for Google employees, making it difficult to ascertain how this works and what it is intended for.
Obviously, with a name like "vboot-windows," it is easy to jump to the conclusion that the feature is intended for Microsoft Windows, though little information about this is available. The commit was found by -nbsp- on Reddit.