That's Huawei's Android fork, right? Is it available on devices outside of China? I'm not seeing an obvious place to buy a device running it.

I think it started like this, but it no longer is the case.

I feel like Huawei missed a gigantic opportunity there: forking AOSP may have gotten them traction. I would totally buy a Huawei device if it could run GrapheneOS, and I wouldn't mind if GrapheneOS was based on Huawei's fork rather than Google's.