Talking various programs, I can speak from some experience. Course my experience occurred in the 80s. That and in Nevada. There are much rougher prisons than in Nevada.
Minimum: A.K.A. honor camp. I'll never forget the clown-looking dude who'd play taps on his bugle on occasion. If you're not smiling or laughing in his presence there's something wrong. That and I remember the smartest guy I've ever met. He was a scientist who got cooked up in meth. It hadn't taken his brain yet. Perhaps just a cook. Some of these guys are in programs, but only because minimum security is next door. All of them work, BLM, cooks, accountant, whatever. Great forms of rehab. They had free reign of the honor camp less curfew.
Medium Prison: I hated minimum. Child molesters (aka... protective custody) get their own unit, two per room. Fish tank. PC and the like get room service. On a side note: I'll never forget the time we got two busloads from an outskirt honor camp. Them boys had baseball bats taken to them in their sleep. I guess they pissed off the blacks.
Lots of programs, basketball, pool tables etc. available to the general population, where there must have been 30-40 plus in a single room. Those rooms stank.......SINKS!..... If you're going to get raped then general population is the place for it. You might get your ass kicked too. Better watch your shit.
That said, unless you're PC (e.g., child rapists), the hole or something like, there's no privacy. PC and the like get room service. Incidentally, the hole really sucks. Blanket, mattress, pillow, toilet, sink & room service is your life. Hopefully we don't run out of space or you could be bunked with the wrong guy. You know, he might like you.
Max Prison: All kinds of stuff at max. As for rehab programs? Ha ha, I honestly don't remember any than other for medium custody. Maybe access to the librady. There may have been a VERY limited number of programs for max. custody, but not much I promise you. I'll work my way from the door up the yard.
We had some medium custody inmates, and these guys worked, gardened, played games with others etc. They have access to the yard, but if I recall, not quite what the general population had at the medium security prison. These boys lived in the old cell house, which was the classic prison setting (some movie appearances). That portion of the prison was built in the 1800s.
Oh look, it's death row. Yeah, we're just kidding, too many rights and bureaucracy. ****, if the evidence is clear you should be dead in a week. What's a bullet cost? Not much else to say other than it's a very cold place. That portion of the prison was also built in the 1800s.
Ah this is cool, it's the federal inmates waiting extradition unit, one inmate per cell. My partner and I pretty much played cards, and we got to eat every night for bonus. Prison food isn't bad man, you should try my wife's cooking. These inmates are a very different group. Generally speaking, most of them struck me as very intelligent. Just not very wise.........ha!
Oh look, it's my unit four. Guns above but it's just me in a bubble, and 60-80 inmates in three areas with generally two inmates a cell. There's contact with others in their area less daily procedure. That might get you killed. One area at a time is released for meals, which is the culinary located between death row and the cell house. Lots of inmates crowded up and down the walkway for meals, but that's alright, there's plenty of weaponry above. Very controlled environment.
Short version is the higher up the hill the greater the custody. Eventually you get to the creepiest of creeps. If you're "behaved" you get sometime alone outdoors for a short stint. Unless you're alone you're in chains. Lots of privacy and room service too. I think I counted 12 doors between them and the fence. I believe they had a personal TV, but only if they earned it.