Only for a 45 day visa except stamp. Which I suspect is the minority of TD members.
"Categories of visitors and requirementsGeneral requirements to go to Thailand
1. Valid visa or re-entry permit, except visitors under the 45-day visa exemption scheme"
Requirements for foreigners travelling to Thailand during COVID-19 travel restriction - Royal Thai Embassy, London
Here is a link to the country's citizens that are eligible:
https://image.mfa.go.th/mfa/0/zE6021...%B8%A3/VOA.pdf