Maybe some people haven't seen a famous artist die because of drugs because that is so, so uncommon
I liked Alice in Chains too, I even keep their CDs.
Being an addict and looking like an addict are different things, is not clear what drugs Quinn does and she sure does not look like an addict. She is high sometimes when she is naked without makeup in her room, maybe that's why the confusion. But the renders of the fly scene are beautiful.
Tommy is depicted that way, poor lad looks really bad in his last known scene.
That scene like many others from the first chapters is a little bit out of place and modulated with the events of later episodes: she smokes weed with Tommy, Riona and MC in ch.4, she doesnt like heavy drugs in ch.6 and is reluctant to sell them, she uses a hooka in ch.7 (with some fruit shit), so she is deescalating, the next step will be vaping and investing that money in crypto.
I think she risks DPC will make her too soft, she hasn't even tried to manipulate anyone in the last two chapters.