I think it is a bit more complicated than just a stereotype. "Women bringing a different, less adversarial, work culture" is a trope present in the works of some feminist activist, DEI workshop facilitators, and sociological researchers. Usually it is phrased more as "we should be more accepting of workstyles that differ from the dominant workstyle", where the dominant workstyle happens to be associated with our current stereotypes about masculinity. This is definitely a difficult to discuss topic where you really need to steelman what you hear, otherwise the conversation quickly devolves.