It's a mix. 'The Good Mothers' has some roots in real-life situations, but the plot and characters have been fictionalized and embellished to create a compelling narrative.
Well, without having read it specifically, it could be about the real - life accounts of mothers who were considered 'good' in a certain sense. It might tell of their love, sacrifice, and how they overcame hardships. For example, they could have been mothers in a war - torn area trying to keep their children safe and raise them with values, or they could be mothers in a society with strict norms and they defied those to do what was right for their kids.
It's about a story of some good mothers, perhaps their challenges, relationships, and how they deal with family or community matters. But without more context, it's hard to be very specific.
I'm not entirely sure which specific 'Mom Mothers of Monsters' you are referring to. There could be many fictional works with such a title. If it's a relatively unknown or indie production, it might be difficult to determine its truthfulness without more research.