They reflect the same interest in Gentiles and the same interest in women. Luke was not Jewish. He writes in the highest Greek of the New Testament. The end of Luke dovetails into the beginning of Acts. Acts begins where Luke leaves off.
Acts is a sequel.
Jesus only appears to his disciples in Jerusalem in Luke and Acts. The Author Was a Companion of Paul. There are three such sections. The abrupt ending of the book indicates that it was written immediately after the events described in the book and prior to the death of Paul or the destruction of Jerusalem. Indeed, there is no mention of any persecution at the hands of Rome.