I have also travelled a lot in the past... You presumably do have a "home" country in the sense of where your bank accounts are, get a cheap permanent sim/phon

I have also travelled a lot in the past... You presumably do have a "home" country in the sense of where your bank accounts are, get a cheap permanent sim/phone no with roaming, buy the tiniest phone you can off amazon and stick it in as your 2factor permanent number. Yes, you have to keep that phone charged, but your problem is now permanently solved, it's how I did it.