I agree. But if the goal was for it to be universal enough to work anywhere without the password manager installed then these crypto primitives would work. Yo

I agree. But if the goal was for it to be universal enough to work anywhere without the password manager installed then these crypto primitives would work. You'd still be relying on the strength of those primitives and your secret key so it's not nearly as secure as randomly generated password. So, yeah, use a password manager.