Can international arrivals use connecting flights through Bangkok to enter the Phuket Sandbox?

As of the latest comments, it has not been confirmed whether international arrivals can use connecting flights through Bangkok (BKK) to enter the Phuket Sandbox. Current information suggests that transit through Bangkok to Phuket is not allowed, though there was initial speculation. Passengers can transit via Bangkok only if they are part of the Samui scheme, provided the tickets are booked together. The situation may change with the resumption of domestic flights, but no updates are available yet.