the OA has an insurance requirement where as the non -o doesn’t much better to apply in your home country then open a bank account and get your funds transferred in for the yearly extension 800k Thai baht
There is no DTV/ED read the soft power requirements and you should definitely have the 3 proofs on you when returning as there pulling people aside for to many exempt stamps you’ll need 20k in baht or another currency,a flight onward within 60 days and accommodation