Occasionally I flash a pixel device back to an old firmware. Every time, I am surprised how speedy and lag-free it feels. I would really like a 'security upda

Occasionally I flash a pixel device back to an old firmware. Every time, I am surprised how speedy and lag-free it feels. I would really like a 'security updates only, no other updates' phone, because I value speed over some UI redesign or whatever is in the next android update.