I'd take these living costs with a grain of salt. I can say from my own experience that in Bangkok you can live for about twice less quite comfortably. Well but

I'd take these living costs with a grain of salt. I can say from my own experience that in Bangkok you can live for about twice less quite comfortably. Well but better to overestimate than to underestimate and realize that you can't support your living. On the other hand, staying in Thailand as a remote freelancer for a long time is pretty much impossible. Not to mention the difficulty of getting visa now along with all the extra expenses due to covid. Also, due to covid, most of the features such as nightlife, street food, and markets are non-existing now.