Correct me if I'm wrong but I would say that "work addiction" would be better known as a workaholic, so yes I have heard of work addiction. I have never heard of stock addiction either, I think that this would all be the same as gambling addiction. For someone to actually separate crypto as its own addiction all together is crazy to me, if that is the case then why isn't there a stock addiction, lotto addiction, scratch off addiction, sports betting addiction etc. The list could go on and on.
RE: Scottish rehabilitation center treats cryptocurrency addiction / Why the high power consumption of Bitcoin is probably not a problem for the environment