What is the process for applying for a 7-day extension versus a 60-day extension in Thailand?

A user in Bangkok is inquiring about the process for getting a 7-day extension for their visa, which expires soon. They want to know if the application process for a 60-day COVID extension is similar to that of a 7-day extension. A commenter clarifies that the 7-day option is essentially an 'application for extension not approved' stamp, which allows for a week's grace period to leave Thailand, and that both extensions cost 1900 baht.