

They are extremely fragile, even if you haven’t noticed. The folding screen will just fail after a limited number of cycles due to material fatigue, this is pretty much unavoidable. It’s a cool but inherently stupid design, at least with current material science.

No, most of Graphenes features are not implemented in AOSP. There are a lot of CVE patches from Graphene that land in AOSP, but it doesn’t have any of the hardening or sandboxing that makes GrapheneOS what it is.