Chromeos uses crosvm, not qemu. Qemu uses virgl to provide opengl, but I think vulkan is still in the works. You can use crosvm on Linux too,works pretty well,

Chromeos uses crosvm, not qemu. Qemu uses virgl to provide opengl, but I think vulkan is still in the works. You can use crosvm on Linux too,works pretty well, it uses a newer version of virgl to provide vulkan.