For info, I contacted Emirates about this, this is what they said:
All passengers arriving in Dubai from any destination, including passengers connecting in Dubai, must have a negative COVID-19 PCR test certificate to be accepted on the flight. The test must be taken a maximum of 96 hours before departure. This excludes children under the age of 12 and passengers who have a moderate or severe disability.
Emirates not flying atm. If yr basing yrself on their flight "availability" on their booking page, I wouldn't be too sure... They where taking bookings for July in June still..until they decided not to resume operating them...and they didn't add BKK yet to their destination update.. just saying..