We got 59 in Bariloche a couple days ago for USD (no minimum but traded in $100 USD in cash).

Chase hasn’t settled any of my CSR transactions yet so can’t say what they are using.

My one withdrawal was with Schwab on 8/29 (before they put a hold on my card which despite being lifted is still not working hence the need to make a dollar exchange). Looks it transacted at 57.30 net of ATM fee (which was refunded)