I am writing this post for anyone with friends or family in Thailand who is wondering how the COVID-19 pandemic is being handled here. It is written from the perspective of a US expat of many years who is still in touch regularly with family and acquaintances back in the US, and who is monitoring the situation there (and here) to the extent I can.
How is Thailand Fighting COVID-19
The main tool that Thailand is using to fight the COVID-19 pandemic, which you will become immediately aware of if you set foot in the country, is control of movement (checkpoints and curfews) and temperature/health screening.
If you choose to leave your place of residence (and most people here are voluntarily choosing to do this as little as possible), you will have your temperature screened at any building you enter.