At what quality? Most frameworks are paid by amount harvested so they bust their asses to pick all that fruit. What’s the motivation for prisoners to do more than the bare minimum? Related question, what will the other inmates do to the inmate who works much harder than everyone else?

I'm sure a nation with such a... shall we say... "colorful" and rich history in prison and slave labor can muster some experts on the matter to answer your questions. Satisfaction guaranteed, or your money back. Et cetera.

Prison laborers generally get paid (very poorly).

See https://en.wikipedia.org/wiki/Penal_labor_in_the_United_Stat...