The story Kratos told Atreus might have been about his journey to redemption and the lessons he learned along the way. Maybe it included details of the difficult choices he had to make and the consequences of his actions.
One common theme is the re - imagining of the mentor - apprentice relationship. Since Kratos is often seen as a mentor to Atreus in the original, when Kratos is female, it can bring a different flavor to that dynamic. For example, a female Kratos might be more empathetic in her teaching methods.
Well, there's a fanfiction called 'Female Kratos' Ascent'. In this story, a female Kratos has a more nurturing side towards Atreus compared to the original. It shows how their bond grows in a different way. Also, 'Atreus and the Female Kratos' Adventure' is quite interesting. It takes them on a new adventure where the female Kratos uses her strength and wisdom, and Atreus learns from her in unique ways.
Kratos is incredibly powerful, but it's hard to say if he's the absolute strongest. Different fictional universes have their own mightiest characters, and it depends on various factors like their powers, skills, and the context of their stories.