@Steve ******
why don’t you show it as this is the info I got. This is why people should seek professional advice instead of Facebook keyboard warriors.
No, there is no official Thai immigration requirement mandating proof of an onward flight (or any booked departure from Thailand) when entering on a Destination Thailand Visa (DTV). The DTV is a multiple-entry visa valid for 5 years, allowing up to 180 days per entry (extendable once for another 180 days at immigration offices), which is designed for long-term stays by remote workers, digital nomads, and participants in Thai cultural activities. This contrasts with short-stay options like visa-exempt entries (up to 60 days) or tourist visas (up to 60 days), where onward travel proof is more commonly enforced, especially by airlines during boarding.