Yep. Speaking from experience, top colleges will give students with ADHD or similar conditions as much as double time or more on exams. One college I know of sends them to a disability services office to proctor it, in which they simply don't enforce time limits at all.
Coincidentally, there's an overwhelming number of students with ADHD compared to before these kinds of accommodations became standard.
level 2 of the ADHD cheating iceberg is having medically approved methamphetamines to infinistudy before exams e.g. ritalin
Edit: Elvance apparently has Amphetamin in it as well and I‘ve seen it in the wild here too.
I take Adderall and literally fall asleep because it lets my brain shut down. It _decreases_ my anxiety.
I don't get high or hyper off of it, it literally just lets me function enough to do my laundry. It's honestly like wearing glasses.