Papa Goose

We fly into BKK from a safe list country on the 10th Jan for 6 weeks. We are double vaxed and have the QR code from France for the jabs on phones, and travel insurance is in progress so all good. However, I'm uncertain about the "1 night SHA+ stay or until neg test result" though. i talked to someone who lives in Bangkok who was formerly a director of a travel company. She said it's grey, but if you get an express test at the airport and it's negative, you can just leave and head to your destination.... is that right? For the Thai pass which is replacing the CoE, any views on when this will be ready to download? We are just happy to be able to get back, just wish the gift of clarity could be bestowed on the people who make the rules in Thailand so everyone know whats happening and can plan.