I'm not sure. It depends on where the story originated and what's been said about it. Sometimes stories labeled as 'true' have elements of fiction mixed in.
Mike is not based on a true story. It's likely the product of the author's imagination or a combination of various fictional elements to create an engaging narrative.
It's not a true story. 'Like Mike' is a work of fiction that was written to appeal to a wide audience and provide an enjoyable cinematic experience. The events and characters are made up.
Yes, it is. Mrs Mike is inspired by real events and people, although it's likely that some details were embellished or adapted for the sake of the narrative.