@Wayne *******
you’re referring to the TM6. It has been suspended for air travel.
Joe is referring to the TM30. Which is done by either the hotel or landlord of the condo etc you’re staying at. You can also do it yourself. It’s required within 24hrs of being in Thailand.
Bangkok immigration doesn’t ask for it, the TM30. If you can get it, I would suggest you have it. Just in case.