I agree that calling all this "psychosis" is motivated primarily by a desire to make the person in question look or sound crazy, and is plainly irresponsible on that front.

chatbots being able to evoke real manic episodes in otherwise healthy people is basically true, though - folie a deux doesn't require both participants to have some disorder, and the AI is packing all of them (and the harm is real, there has been something like 30 MDS cases already)

of course, and I wouldn't be surprised if there were case studies of this. but it's far from the usage leveraged in this article or by most, really, and that's somewhat unfortunate