The cartoonish artstyle might hide it a bit, but Fortnite is basically Epic’s showcase of all the newest Unreal Engine tech. The move to UE5 a couple years ago brought with it all those new features and a huge leap in graphics. Fortnite has been around for a long time now, so the minimum performance targets are probably changing as tech and average system hardware improve. I don’t actually play it, but it’s pretty much a different game now compared to when BR mode was first released.