My uhh.. experience:
Exiting Argentina sucked. I flew out on the 24th They didn't have a separate line for the verifly app, but i was coming in from 4-5 hours away so i arrived a bit early to account for any traffic. EZE lets you into the airport around 3 hours before the flight. You can't check in earlier than that. I left before the limit. The luggage checkin line wasn't impossible (but i'm also priority status). Security and migraciones were pretty quick.
The only lounge open was the Skylounge. It was pretty crowded too. But pretty comfortable.
Entry to the US was pretty crappy in Miami. The re-custom check-in for Miami was a disaster. Since I arrived so early my bags were the last off the plane practically and i missed my connection flight. There was no pre-check available to get back in the airport. After i get back in to the airpot.. All normal.
Getting to Argentina was after the limit. My flight monday was cancelled on Sunday morning and then uncanceled Sunday afternoon. When i was cancelled i was rebooked for the 19th.. After it was uncanceled a great american airlines agent helped me get rebooked to the flight. You see when a flight is cancelled, everyone loses their seat... Then when it gets re-instated, its a free-for-all to get a seat back. I was really fortunate to get back on the same flight.
Arriving in Argentina was exciting. Migraciones was easy (I'm a permanent resident yankee). There wasn't really a line for extraneros or argentinos. Aduanas was stressful because I usually come back heavy with toys for my boys and gifts for my wife. And clothes. And thermoses. Anyways, stressful.
After aduanas, it was 2500 pesos antigen test and 30 minutes of waiting. Then you're free to GTFO. I'd say it took me 2 hours after landing to be free to leave the airport to my week long mandated quarantine.
The local hospital here is following up on me that i'm in isolation. The hospital also scheduled the PCR test for me.