I'm not spiritual in the slightest, so I don't believe in any such notion as a human "soul".
Nobody seems to be able to provide any sort of cogent explanation as to what this supposedly is. The nearest thing to anything that makes sense sounds more to me like a description of personality, which is a product of billions on neurons in our human brains.
Some AI can do a reasonable impersonation of a human being, so much so that when questions and answers are put in text format, a lot of people really struggle to determine whether or not they are conversing with a real human being or a computer, because the AI's can also be taught to display a form of rudimentary "character" and "personality". If silicon-based computer chips can hold enough information to emulate this, then it seems perfectly logical to conclude that a far more advanced and capable carbon version, i.e., the human brain, can pull off a vastly superior version of the same thing, hence why I see nothing whatsoever that is explained by the existence of a "soul" that isn't already adequately explained by the human brain.
This is before we even get to the fact that despite humans being dissected and documented for centuries, as of yet, nobody has witnessed anything whatsoever that physiologically hints at the existence of such a thing, or where it might reside, which again suggests that all a "soul" actually is, is a case of mistaking how brain function presents itself to outsiders, i.e. personality and individuality, for something more than it actually is, and falling into the same trap religion is often guilty of, i.e. adding completely unnecessary added layers of complexity in an attempt to explain something, that just prompt further irreconcilable contradictions and require further explanations, when the universe functions perfectly well if the premise is that the matter under discussion simply does not exist in the first place.
Humans function perfectly well even if the premise is that they are just a pointless, talking bunch of semi-sentient apes, and a big squishy bag of atoms and molecules. All introducing notions like a "soul" does is needlessly complicate us and pose a whole load of irreconcilable quandaries.