Is the SAT fair and most people don’t know the content, or is the SAT unfair because its racial bias

This may be a bit late, but a my school, there are several people with a 4.00 and above, but most, if not all, of them cheat on their work. As a result, when they take tests such as the SAT, they can’t even break an 800 total. I’m not even joking. I heard them bragging about it.

extra time isnt unfair i am someone who has it for somethings and not for others and the ones I’m not supplied with extra time in I do extremely bad in I’m a person with adhd that’s why but its by the government and only 5 minutes do u know my math scores last year with no diagnosis or extra time 60s and now I’m getting 90s in all fairness math is my strongest subject but still