@Walter ******
in order not to do out the form you need both vaccinations and have taken an atk test withing within 72 hours as well.
I'm double vaccinated, in the Mor Prom app and have the yellow vaccine passport too and I had to fill out the form, as did everyone I watched (more than 30 minutes of people trying to get in)
I saw one Thai who had an atk test yesterday and proof of vaccinations get in with filling out the form, every foreigner I saw had to fill out the form vaccinated or not