Will the American iPhone XR work in my country?

I am going to travel to Texas this November and planning to buy a new iPhone.

I live in Hungary, and am concerned about the carrier/network compatibility.

In Hungary they sell the model A2105, in the US it's the A1984.

The Apple's site says it won't work (iPhone - View countries with supported LTE networks - Apple)

My carrier is Telekom HU - which is the Hungarian version of T-Mobile.

What do you guys think?

Thank you in advance.