No, it did not? And so you have the evidence they did not? What is it? Maybe like we are fish, right? Maybe you don't understand my answer. So let me tell you what I mean. This IS no evidence that homo sapiens evolved from fish to denisovans intermingling.
Our fish ancestors were over 350 million years ago. The modern human line interacted with the Denisovan line around 100 *thousand* years ago.
You are somehow merging the two extreme ends of a very long progression that, yes, we do have evidence for.