In my subjective experience cannabis does tend to nudge some part of the brain into edit mode. What happens afterwords depends on the person.

For me it upended a lot of my alignment with the contemporary consensus morality. Before marijuana I had a sense that the morality wasn’t actually well foundationed, or at least it was equivalent to a religion in that respect, but my mind seemed to avoid thinking about it too much. With marijuana my mind freely went there, and I think a lot of my prior beliefs about the world and social systems ended up being altered.

I haven’t ended up with any diagnosed conditions, but it is inconvenient to have beliefs that are quite different from the societal default, even though in my case I do believe that my way of seeing morality is significantly more accurate on a technical basis than the consensus view. And I suspect this wouldn’t have happened without any marijuana.

I can definitely see how someone with a less analytically oriented mindset could end up going off in weird directions and writing that as a legitimate belief while in edit mode.

We definitely need studies to properly characterize what exactly this edit mode is, but I am not too skeptical about there being some kind of causal link between marijuana and going off the rails mentally, in some individuals and in some environmental conditions.