Can I extend my stay in Thailand beyond my current visa and what are the options available?

A Malaysian passport holder currently in Bangkok is seeking information on further extending their stay in Thailand after initially receiving a 30-day visa exemption stamp and a 30-day visa extension. They inquire about the possibility of obtaining an additional Covid extension stamp for 60 days before July 25th. Community responses indicate that while a Covid extension may be possible, it is not guaranteed and may vary based on the discretion of the Immigration Officer, as well as concerns about prior denials faced by other Malaysian nationals.