That adapter allows you to fast charge the car using a DC fast charge station - a public charging station that converts 480V AC into 400V DC and feeds that directly to the car. I'm not aware of anyone who has one of those at home.
A wall charger and the portable cord that comes with the car are both glorified extension cords - they pass main AC power to the car's onboard charger module, which then converts it to 400V DC and charges the car. The car can handle more or less any input from 100V to 277V at any frequency just fine. For that you have two options.
The devices sold in Europe will work fine through some adapters - you need type 2 to type 1, and then the J1772 (type 1 by another name) adapter that should have come with the car.
Or you can buy US spec equipment - a US wall charger is only designed to connect to a single phase pair, but I think it'll work fine within that constraint.
If the car came with a "second generation" mobile connector, you can get special ends for that which match european connectors here:
European CEE 32A 6h Type 023 IP44 Blue Commando (Caravan Mains) Adapter for Tesla Model S/X/3 Gen 2
If you're comfortable working with electricity, you might be able to make your own adapter to take whatever plug to have and connect it to a US receptacle to plug the cord the car hopefully came with into, but that could be risky if you aren't sure what you're doing.