Can an individual on an ED visa in Thailand switch to a Non-B visa without leaving the country?

An individual on an ED visa who has completed a Master's degree from Chulalongkorn University and found a job can switch to a Non-B visa without leaving Thailand by either canceling their ED visa extension and applying for a new one based on employment or by getting a 60-day COVID stamp before applying for a 90-day Non-B visa. Consulting with the employer and the local immigration office is essential for proper guidance.