When the Blessed Mother recommends devotions, she usually sticks to one set of them that is popular or at least known in the area at the time, or simple new prayers targeted to local needs. Same thing with appearances of other saints, or of Jesus.
There are thousands of historically and currently approved, official Rosary variants, often with different sets of meditations and Mysteries. Different parishes have different formats, often due to ethnic or missions order origin differences. Medieval Rosaries in Portugal were totally different than the Dominican Rosary format used today.
Mary had no reason to bring those up, either, so she didn’t.