The story is purely fictional. It was made up by the author's imagination and not inspired by real-life events. The plot and characters are all fabricated for entertainment purposes.
Well, it could center around her personal growth in Oslo. Maybe she had to adapt to a new environment, meet new people, and through these experiences, she grew as a person. It might also involve her participation in local community activities in Oslo, which shaped her identity and values.
I'm not sure. It could be a blend of real and made-up. Maybe it started with a kernel of truth and then the storyteller took creative liberties to shape it into what we see.
Hard to say for sure. Sometimes movies or shows claim to be based on true events but have a lot of fictional elements mixed in. So, it could be a blend of fact and fiction in 'The Girl from Oslo'.