No, pretty much any Christian of any denomination understands Creation to mean "all that is created by God", i.e. the whole universe and all therein. The Catholic church, by far the largest "denomination", does not teach young-earth creationism, and I doubt that belief is shared by any more than a small minority even of Protestants.

Perhaps they join the concepts because they know that the opponents of their faith often try to falsely imply that theories of evolution are proofs of atheism.