No, just as strength is a property of muscles, so consciousness is a property of a functioning brain. There isn't a soul-sized gap in what we observe about the functioning of the brain as it relates to consciousness.
This view, by the way, is Biblical. In the Psalms it's made quite clear that death is the end of all consciousness.
There are not a few experts that see the brain as being more or less a filter:
Dr. Peter Fenwick:
A highly regarded neuropsychiatrist who, based on his extensive research into near-death experiences (NDEs), suggests that the brain acts as a filter for consciousness, which he views as an inherent, independent property of the universe, much like gravity or dark matter. https://imhu.org/integrative/where-does ... %20gravity.
There are others that look at consciousness as being primary rather than an outgrowth of the material brain itself.
Off topic, I know. But it seems as though you see no need/evidence for an afterlife. I'd just say, "Not so fast, buddy!"
If there is something beyond death then it becomes a matter of 'what is it?' Believers in Jesus provide one option to look at. There are some others, of course.
Regards,
MG
NDE Research isn't actually credible. It's well known that that hallucinations and out of body experiences occur in a certain percentage of people when blood is cut off from the brain. It can even be reliably created by putting people in centrifuges. The NDE stories tend to match the cultural expectations of the people who have them. Dreams and hallucinations can tell you about the psychology of the people who report them, but they don't establish consciousness after death