@shivvi I found Fallout 3 to be rather boring (but conceptually fine, and NV had the "Mother Theresa or Baby Eating" choice binary. 4 is easily playable to a modern audience while having no plot substance.

When I say "earlier Fallout" I am more referring to 1 and 2, though New Vegas flavor and humor-wise is closer to the original two games. Very well worth playing.

All the Fallout games are going to have callbacks to US references, as the game schema is based on retro-futurism circa US 1950's.