I had a 2.5 GPA in high school during the Bush era No Child Left Behind times and remember their fucking brown boring ass book packets for homework and class.....and LOATHING those unstimulating ass books just to get told I am just not smart enough to be in better classes. Until I unlocked the upper level AP classes my last two years of high school, which didn't need an exam to get placement. Got a 4.0 the next school year and 4.5 cumulative my last year, its unfucking believable how many other students are and have likely been held back by how education is served to neurodivergents and hell even neurotypical folks.

2.0 is straight C's

3.0 is straight B's

4.0 is straight A's

5.0 is straight A's but with AP classes (college level) buffing it up