I have a 2019 Mavic Air and looks like I need to register myself as an A1 operator in Italy.
https://www.enac.gov.it/sicurezza-aerea/droni/come-si-diventa-pilota-uas-drone-open-a1a3
In the directions to take the online test it states that one needs a SPID (Public Digital Identity System). But it seems impossible for a US citizen tourist.