Different interpretations

Ok what do you all think is the difference between the two gfe and pse ? I know everyone interpretation is at least a little different. I might be wrong but in my opinion pse is a little or even a lot more things offered that gfe . I was just told by a provider that she’s pse because of positions but she’s not gfe , that too me seemed way off lol . And to be clear I definitely do not think it’s considered pse because you are or once were a pornstar .