Review theatre
An approve button pressed eighty times without looking.
Review theatre is a dashboard nobody reads and an approve button that gets pressed eighty times in a row. If the reviewer approves everything, you do not have a person in the loop. You have a delay.
Make the review real: a sample the reviewer must actually decide on, mistakes seeded in now and then, and a count of how often they change something. If the answer is never, the check is not working.
Find your way around
Learn it in the course, copy it from a playbook, see it work in a case study.