I'm not sure specifically which 'don't say my name true story' you're referring to. There could be many stories with such a title or concept. It might be about a person who has some reason to keep their name a secret, perhaps for privacy, safety or to avoid unwanted attention.
One example could be a whistleblower's story. The person might not want their name said to avoid retaliation from the powerful entity they are exposing. They are doing the right thing by revealing the truth but fear for their safety and livelihood if their name is made public.
Hard to say for sure. Maybe there are some real-life elements incorporated, but it's likely a combination of fact and fiction to make it more interesting.
I don't know for certain. It could be completely made up or have some roots in reality. Maybe look for reviews or articles that discuss the background of the story to get a better idea.