I concur - it’s not the whole setting - though before the Helm core recovery, it was a technologically fallen, scavenger-centric setting, with many similarities to Mad Max. Water raids, frankenmechs, pirate kings with outsize personalities, etc.
But, if you want a different vibe, there are worlds where you can accurately claim the action and culture resemble Fallout, the wild west, the Roman Empire, the Scottish highlands, the Iberian peninsula of the 1300s, Arabian Nights, Las Vegas, the Klondike, Vikings, Land of the Lost, James Bond, etc.
So if you want zone gangs rampaging around the sea of despair (a vast desert waste) in cobbled together war rigs, battling dead mercs and slaver warlords, head to Antallos. Otherwise, you’ve got a vast choice of other settings to suit your preferences.