Eh, hardly entirely. The "Coming to America" bits have all been modernized, which is as it should be since there is no point to pretending cultures worked like they did back then.
But Shadow's story seems largely the same. The only major change is how Technoboy went from a fat loser to a rich, spoiled brat vaping while anonymous goons try to lynch Shadow. Which, again, makes sense. Perspectives on what a tech savvy person have changed and the fat loser is a dead stereotype, and the dangers of the internet are different now.
The show was always about American culture. It just means something different now than it did then. If American Gods is adapted into another show 20 years from now, it will have to adapt to culture then as well. Which makes this show in itself mythological in a way. There is no 'canon' to mythology, there is no one true way to tell any story, just the most relevant way, and that depends on both who is telling and when and where they're telling it.
