Amazon's Fallout show set up a fan favourite location from the games, though it's sounding like you don't need to worry too much about your own headcanon.
Big spoilers ahead for the end of the Fallout series.
With the knowledge that the Fallout show would be set in what once was California, fans were of course wondering if one particular area from the games would show up or not - that being New Vegas, obviously, given that they're neighbouring states. And as shown right at the end of the series, Lucy's dad Hank has stormed his way over to New Vegas in a piece of power armour, presumably setting up that we'll be seeing a lot of the locale in season 2 (which was confirmed last week). If you were one of those people making that presumption, you'd be right! As co-showrunners Graham Wagner and Geneva Robertson-Dworet recently spoke with GQ, where they briefly spoke about New Vegas as a season 2 setting.