- So over the last 6 months, each embassy has been moving to the online system. Cambodia switched back in October. Taiwan, which is where this YouTuber went 4 weeks ago, switched over last week. As of the new year, all Thai embassies have switched to evisa. You still have to be present in that country to apply via the embassy, but you no longer have to show up in person (several do still require you to pay in person though).
Yes, evisa is the only option, and application will be routed to the embassy you select (which needs to be the one/country where you are physically present). Unfortunately, each embassy determines their own currency conversion. Unless your bank/money is baht, you must go by their conversion.
Apply via the embassy in Vietnam (depending on where you are in Vietnam, there are two locations- Hanoi and HCMC). Proof of current location is your entry stamp in your passport