Yes the 30 days visa exempt option is available for certain countries. However, you still need to apply for COE which involves having a flight and ASQ booking along with insurance.
no, I was at Samui immagration a week ago and they said I had to get the 30day entitled extention first. Depending on the situation near the end of the extention, I could come back 7 days before it expires and apply for the 60days covid extension.
for the first 30 extention you need to fill out the tm.7 form. A copy of your photo page of passport, stamp page, and departure card copy. 1 4x6cm photo.