@nativeNYer,
I was tagged in this post because my middle son has some similarities to yours. He, too, was a natural test taker (though not as high as yours; his SAT was 2230 back in 2014), labeled profoundly gifted (and very, very twice-exceptional) and had good grades overall, but his rigor was weak and he struggled with getting up, organization, and so on. He was also homeschooled, but was full time dual-enrolled in his senior year.
He is not on the spectrum, but he’s a strong introvert and has struggled for many years with severe depression, anxieties, and OCD among many other things (LDs, T1 diabetes, and more). He has excellent social skills in the right environment.
He was admitted to Penn RD and chose to attend after a gap year. He lasted 10 weeks before coming home (we live across the country). Penn was not a good fit. True, he got sick three times in 10 weeks which made it impossible to keep up with work, but the students were so different from him (Penn Whartonites vs. an introverted creative Fine Arts major-not a good fit) and the academic rigor was more than he could handle. He didn’t really connect with any students, and did indeed spend a lot of time in his dorm room.
I did not want him to attend, but he insisted it was his “best option”. In retrospect, he couldn’t have been more wrong, IMO. It’s taken him two years to be ready to try again as a transfer student from the local community college in a totally different field (cello performance) than when he applied as a freshman.
He still has a lot of mountains to climb and continues to struggle, but this time, we’re focusing mostly on schools close by, eschewing any “name” music conservatories. I’m hoping he lands at the academically easiest college possible, TBH. He needed/needs to be in a small pond and not a big ocean.
I can’t say that your son will have exactly the same issues, but I do know RIT, and I think it sounds like it would be an excellent fit because of their special needs support. Having said that, Penn had a great disability office and strong support. The hard part is the fact that special needs kids still need to advocate for themselves; at a place like RIT, that’s going to be a lot easier to do than at an Ivy.
I wish your son the very best.