Got a T-Mobile eSIM while travelling in the US last year to get around this. The eSIM was a great deal (can’t remember the specifics, but pretty cheap with a decent amount of data). I was making two trips to California and Georgia in the same 30 day window, so it was useful to have.

The only downside was that I couldn’t activate the eSIM before getting to the US, and LAX didn’t appear to have any WiFi while we were there (not sure if that was generally true for the time, or if it was just offline). So I wound up having to roam to get the eSIM, and to get a text message from the shuttle that was picking us up from the airport (as I had to give them that in advance, and didn’t know what my US number would be until I got there).

Still saved us some money, but it was a bit of a PITA to activate with no WiFi available at the airport.