How the new marketplace Fab is gonna work for Unreal Engine users?

I am very concerned about the fab thing. On the Unreal market place we have quality and project structure standards for sellers, I can be sure it is suited for certain Unreal version. And ArtStation and Sketch Fab on the other hand are a huge pile of garbage where hard to find something. How the merging is gonna work? Will I be able search assets specifically for Unreal Engine?