Does the pass for a guest have discounts?

If you renew it yes

It depends if you are a resident of California you can buy the annual pass and you save a lot of money

No.

There was none at the time I was there July 2022

If you have an annual pass, yes.

Of course not, but looking for lower prices and inside the park there are offers to renew the annual pass.

They still give you a guest pass, do you want more? .... nomanche compa

I think not