That's really fascinating! The opinions of laity really differ from the opinions of learned clergy, like Catholic priests, Protestant ministers, and even Evangelic preachers. A lot of Christians have absolutely no interest in exploring the history of the tradition to which they claim obsessive allegiance, and it shows when they not only lack knowledge of other religious traditions, but utterly misinterpret their own theology. For example, recently, I learned that the idea of an "immortal soul" isn't compatible with classical Christian theology – that's a misinterpretation of contemporary Christians who view their tradition through the lens of pop culture, filtered further by Greek and Latin renderings of Hebrew and Aramaic literature.
To flesh out that statement, the word "soul", as used throughout the Bible (especially the Old Testament), is never connected with the concept of a life force disconnected from the human body. That idea seems to come from Plato's concept of the intellect, and perhaps, shaped by Gnostic literature from the first few centuries which utterly rejected the reality of material forms. Within the literature, the "soul" called Adam did not exist until God injected part of his Spirit into dust, and formed the first human. While "immortality" is used extensively with regards to the Christian afterlife, it indicates a resurrection of the human form, including the personality, and physical traits the individual developed throughout life, not just a glowing ball of spirit that floats out of the body for judgement after the body dies.
Another fun tidbit I came across has to do with the popular interpretation of the character called Lucifer. He doesn't exist – I mean, not just to people like us, but within the context of the Bible, itself. "Lucifer" was only ever employed to refer to planet Venus. Church Fathers who wrote several hundred years after the Biblical canon, began to poetically connect the concept of Satan (represented as an adversarial dragon, thrown from Heaven) with the unique movements of Venus during morning hours. Even so, the notion of Lucifer as an angel thrown from Heaven for disobeying God is simply not an idea theologians believed. It was a medieval metaphor that took on a life of its own in contemporary pop culture.
... but walk into any Church and ask any random person "who is Lucifer?" and "what is the soul?", and they'll provide explanations and definitions that are completely incompatible with the theology to which most Christian clergymen subscribe. Their conception of Lucifer is most likely informed by popular media they've seen; their conception of the Soul comes also categorically from Plato's conception of the Intellect, a conception that Catholic priests (specifically) reject, because of the Church's need to distance itself from the impurities of the "pagan" philosophies of ancient Greece.
We also see this in the "miracle" of the resurrection – what is significant about this event is that Jesus' physical form was supposed to have been literally raised from the dead, not just a disembodied soul that is separate from the body. Furthermore, one of the classical ideas of early theology supposed that Hell is not the negative to Heaven's positive, in which Satan rules as King, versus God's Kingship over Heaven. Rather, Hell is the historical default state of not-having-an-afterlife (like a kind of nothingness), not a place of torture and punishment as depicted in contemporary media; but if you ask most Christian laity, they believe Hell is like the unbearably hot inside of a volcano, full of meddlesome demons (where'd they even come from?), which would suggest a negative afterlife, and not simply no-afterlife.
All that being said, there are hundreds of Christian denominations, billions of Christians, and thousands of clergymen, so opinions differ. Nonetheless, the aforementioned descriptions are closer to classical Christian theology, whereas the opinions of most contemporary Christian laypeople is closer to something you'd see in The Exorcist, the Passion of the Christ, and the Supernatural series on TV (which my wife and I have been watching).