I understand that side note wasnt for me, but yeah most of cheaper developing South East Asia countries are not "poor". Though there are ones you can call that, but again in a such countries you dont really want anyone to know you have $100,000 somewhere on a bank because its can get unsafe very fast. Its either "live just a little better than locals" or get in trouble.
PS: I talking of Myanmar, most of Laos and Cambodia.
Easy to live on sub 700$ a month if you're happy with air conditioned studio, mostly asian food, scooter and not going to high end bars.
Get the 1 bedroom apartment, quite often takeaway/delivered western food sub 1500$ a month.
Go eat out western food everyday, live in a 3 bedroom in the nicest district go to fancy bars etc and yeah maybe you can reach your 5k a month...
People have no clue / are not willing to experience adjustment for 3 weeks... But easily possible to live here for budgets mentioned above...
Plus health insurance like Cigna for $100-200 unless you want to pay $10,000-20,000 in vinmec if you crash on a motorbike or get other serious sickness.
Plus border runs like $200-300 three times a year or often for cheaper depend on your paasport.
Problem that I doubt its how average SWE on HN imagine "comfortable" living.
Then if you have a partner who is not remote worker and kids there will be other surpeises for you.