It is the same. From my discussions, most Christians does not believe it is 4400 years since the flood. The Bible does not make such claims either. Once I had the same questions, and majority of people I talk to believe the linage recorded in the Bible only cover important people.
Thanks, at least you acknowledge this, unlike some others
Never the less, it is the first stage of Evolution, and abiogenesis is a must for a Godless evolution, and since you are an atheist, you have to agree that abiogenesis must have happened for evolution to happen.
My claim for you is, ToE is not a theory but a hypothesis. Unless you can show how RNA is formed, what part of DNA has to change (i.e. the sequence of DNA change that resulted from on species to the other), ToE is just a hypothesis, not a theory.