The last count we got was they were holding around 500 detainees, and they are using Gitmo as a holding center while they wait for extradition to other countries.
They recently subpoenaed Meta for information on a Facebook and Instagram community watch group that monitored the ICE activity in their area. A motion to quash the subpoena was made in federal court, but DHS isn't giving up.
ACAB (All Cops Are Bastards) is a group focused on leaks, hacks, and news about police and federal agencies who are acting beyond the bounds of the United States Constitution.