Can I apply for future extensions at MTT after transitioning from a Non-O visa and receiving COVID-related stamps?

After using a Non-O visa for medical reasons and subsequently obtaining special COVID-related stamp extensions, it's important to note that you are still associated with your original Non-O entry. Therefore, you will likely need to continue using the Chaeng Wattana office for any future extension applications, as MTT is designated for those who entered Thailand on specific short-term visas.