We’ve had a lot of huge fentanyl busts in Southern California, hopefully similar elsewhere. Narcan has become more available (I get them from a donation based non profit and have handed out over 60, with one friend using 3 to save a guy). The Biden administration has also been working to limit the sale of precursors, most of which come from china. It’s also possible the cartels have throttled back because they were killing too many of their customers. I’d think it’s some combination of all those.