For those who have entered visa free for a 45 day stay, has anyone attempted to extend their visa at the immigration bureau? The US embassy website states this is possible but is still referring to the 30-day length of stay. I've seen conflicting information on whether or not it's possible to extend under current circumstances.
Also, if it can be extended, is it necessary to leave the country and come back for the extension to take effect?
TLDR : Answer Summary
Yes, those who have entered Thailand on a 45-day visa-exempt entry can extend their stay for an additional 30 days at the immigration bureau. Various expats have confirmed that it is possible to extend without needing to leave the country. This extension can typically be done at the local immigration office, and it may also be possible to request further extensions under the COVID-19 extension provisions if they continue to be available.