Really conflicted on this. For years, my instinct was to roll my eyes and dismiss it all as nonsense - a world full of scammers and low IQ suckers. But then I discovered that Near Death Experiences were a thing.
Hypothetically, If the question of whether consciousness exists independently of the brain was presented in a court of law, based on extremely credible witness testimony and actual verifiable evidence (such as a technically dead person overhearing and later recalling very specific discussions or events after having left their body, sometimes even in a different location to their physical body), the court would have no choice to find that consciousness isn't a product of the brain - it's completely independent.
These aren't one or two random stories of people confusing hallucinations, drugs or dreams with something else - these stories, at least the ones going public with them on the internet, are in the tens of thousands. There are organisations (non-religious) that people can contact to share their stories. They all describe the experience as being more real than anything in the physical realm and it's an experience that changes them forever - the realisation that they're more than a physical body.
So then you enter the rabbit hole - spirits, mediums, soul contracts, UFOs, psychics, god, the nature of reality, etc. If you accept that there's more to all this than our material reality, logically, all this cuckoo stuff is also on the table. It's an uncomfortable state of cognitive dissonance if you prefer to be on the side of science, evidence, objective truth, logic and reason.
I do think there are a lot of people who have discovered a way to make easy money by shuffling a deck of cards or pretending to hear dead people or whatever, and make up generic nonsense that will fit your circumstances if you try hard enough.
Reminds me of this Derren Brown episode