Definitely not. 'The Forger' is a work of fiction. It was crafted by the creative team to provide an entertaining and captivating story that doesn't draw from any true incidents.
One great Loid x Yor fanfic is 'A Spy's Heart'. It delves into the deeper emotions of Loid as he starts to truly care for Yor beyond their fake marriage setup. It shows his internal struggle between his mission and his growing feelings.