@D **************
contact the Thai Embassy or Consulate and ask.
In past you had to physically show up and apply for a visa.
But for those now outside Vietnam the information I have seen is that it is still CLOSED to tourists other than that island.
But ....I see this...
Effective January 18, 2022, travelers with a valid Vietnamese residence card, visa, or visa exemption certificate, may enter Vietnam. A Real-time PCR COVID-19 test taken within 72 hours will be required. For further details, please see section “Entry and Exit requirements” and “Quarantine Information” below.
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