No myth as I said before. There are writings from Early Church Fathers (which you choose not to believe.)
One example is that apostles were bi-located to her bedside as the Blessed Virgin Mary died.
I’m not asking you to believe it; I’m just saying there is a foundation of truth here — even though you might choose not to believe it.
And that example was written about 600 years after Christ ascended into heaven right? It was in 423 that they declared her to be "the mother of God" to placate the local pagans in Ephesus. The whole Mariology thing is build on hearsay. Not one eyewitness account and not one of the Apostles even mention her after the ascention.