For the Common App, the GPA listed on the application comes right from the HS transcript. If the HS doesn’t include outside classes in GPA calculation, the applicant doesn’t recalculate. Whether an individual college recalculates will vary, but that’s not the applicant’s concern. It is what it is.
In terms of listing past coursework and grades received ,that’s covered by the second transcript unless applying to the few colleges that require the Courses and Grades section to be completed.