The best I can tell there is no requirement for any specific
curriculum in a flight review, other than the "time requirements"

From FAR 61.56:

The review must include:

(1) A review of the current general operating and flight rules of part 91 of
this chapter; and

(2) A review of those maneuvers and procedures that, at the discretion of the
person giving the review, are necessary for the pilot to demonstrate the safe
exercise of the privileges of the pilot certificate.