It may be a bit early asking, but Has anyone in Thailand extended the STV yet? Or TR? Was the process at the immigration office any different...?
TLDR : Answer Summary
This post discusses the experiences of individuals extending their STV and TR visas in Thailand. One user mentions successfully extending their TR visa by making an appointment, filling out an application, and providing necessary documents, while another outlines the requirements for extending an STV, including ASQ paperwork, insurance coverage, and proof of residence.