What are the travel conditions from Phuket to Bangkok for unvaccinated individuals?

Traveling domestically from Phuket to Bangkok as an unvaccinated individual typically does not require any specific documents or tests like a PCR test. However, for the return trip to Phuket, an ATK test result is needed, which can be conducted at the airport. It's noted that while a vaccine certificate or supervised ATK test is officially required for domestic flights, enforcement may vary depending on the situation.