I don't know, I don't make Chrome. But if I had to guess, most people want to be able to lose a key (in this case a completely separate password) without losing

I don't know, I don't make Chrome. But if I had to guess, most people want to be able to lose a key (in this case a completely separate password) without losing all their syncable browser stuff. Edit: a fun way to think through the design constraints is to think about "how come Apple default-e2e syncs all sorts of things without an extra password but Chrome doesn't"