We have a partial port of GrapheneOS to the Pixel 11 series after a week of work on it. We're unable to complete the port due to lack of support for ARM hardware memory tagging in software, firmware and near certainly hardware. It appears Google cut an important security feature to save money.
Motorola has officially confirmed it themselves, and the Pixels 8 to 10 will keep being supported even if the 12 and 13 aren’t supported.
https://motorolanews.com/motorola-three-new-b2b-solutions-at-mwc-2026/