Corset is called "figure manager", its main function is to manage fat and reshape the figure curve, rather than "compressing" a fat man into a tight fat man. The people who are most suitable to wear corsets and can wear them effectively should be:

People who are in good shape but gain weight in a short time.

Women who are in urgent need of recovery after childbirth.

People who need to manage their bodies and want to prevent them from getting out of shape.