I live in Taiwan and was contracting for a USA company. At the end of the year I walked over to the tax office, told them how much I made, then paid the tax bill. I was in and out in about 15 minutes.
But Thailand is going to introduce a nomad digital visa (Indonesia already done it). The idea is that if your income comes from abroad you don't need to pay taxes (or very little). Because you are effectively not competing with the locals.
I did not bother with all of this during Covid, I just wanted to explore the world and find a nice place where I could project myself for many years. I am now in the process of fixing my current situation, open a company and pay taxes.