While I use mint for primary business number, US calls and whatnot, my AIS post-pay phone is my alternative number at my my US bank (Chase) and broker (Fidelity) and they send the code without difficulty.
I like the idea of the e-sim. Next time i’m in the US I may look at that.
Does it allow you to have two active sims at the same time?
Right now I generally leave the US phone at home and let it go to voicemail if I am not expecting a call.
I can always use the Thai phone hot-spot for to make and receive wifi calls on the US phone.