Great article! I was honestly too lazy to comb through that paper myself when I came across it so it's nice someone did lol, was all put together in a really concise yet explanatory way, thank you!
Only thing I would say is that you should specify that MTE is opt-in (per user app) on Android/iOS while Graphene forces it on, it's not explicitly clear they also used on non-system services in this article
GrapheneOS says it will not support Google's Pixel 11 because the Tensor G6 chip lacks Memory Tagging Extension (MTE), a hardware security feature central to the privacy-focused operating system. Bootloader analysis and leaked Google documents suggest MTE was deliberately removed, prompting GrapheneOS to recommend older Pixels while exploring support for a forthcoming Motorola flagship.