Some with schizoaffective might has just traits of one of those two.
I don't fullfill the criteria of schizophrenia, just StPD in adittion to Bipolar II, so it depends. But accourding to the diagnostic criteria you could still give me the lable "schizoaffective".
Schizoaffective is a wide diagnisis where you can put everyone into there who are somewere in between schizophrenia and bipolar/depression. You nessecerrely don't need to have both, just traits.
Sadly very often this diagnosis gets missused by psychiatrists, who are not sure if a person has bipolar with psychotic symptoms, depression with psychotic symptoms, schizophrenia with depression or something else in this direction.