If you don't mind hacking around and a bit of Jank, you can get the Lineage GSI working on the UniHertz Titan.
Still Android, but you keep the HW Kepboard and the batterylife and build on it is insane. Not nearly as clean as stock or the Key2, but much more freedom respecting.
Still Android, but you keep the HW Kepboard and the batterylife and build on it is insane. Not nearly as clean as stock or the Key2, but much more freedom respecting.