In my county public schools honors get a bump and AP get another bump. And then my school has nothing below honors, except for the required PE class and I think a required arts class for which I took guitar. So yes it’s easy for those GPAs to be very high. Some of my As are high and some low, which doesn’t matter for that unweighted gpa but for the weighted GPA I guess someone with all high As and many AP classes could have a much higher gpa.