There is a great video about the Great Filter by Kurzgesagt/In a Nut Shell. If I remember correctly, in it they say we can guess at which stage the filter is by how evolved extraterrestrial life forms are.
So it's actually great if we find a lot of bacteria or other primitive life forms, that would mean we probably already have overcome the Geat Filter on Earth.
On the other hand, if we find many alien ruins of several civilizations at or above our technological level... Well, our greatest challenge might be coming.