Also, Fallout 1 leaned heavily on critique on capitalism/ imperialism, more so than any "Holywood" project ever. Yeah, it's like evil empires in general do the same things because war never changes but also in the case of the US it very specifically targets corporations, the privatization of the defence industry (Tim Cain's words btw) as well as the military, the goverment etc. The show's criticism is very, very mild by comparison. All it says is "maybe we shoudn't give corporations more power". Fallout 1 America is a capitalist hellscape where prisoners are executed on live TV and it cuts to adds of war bonds/ corporations profiteering from war. The US millitary is portrayed as imperialist criminals, there is no distinction between the state and "evil" corporations, we plainly see a system having reached its natural conclusions, fascism really and it's depressive because it feels believable.
If anything, what the show does to the lore, an evil corporation wanting to literally destroy the world, is incredibly apolitical to me. The world isn't destroyed by evil lizard people, there are systemic, economic reasons for why things are the way they are. And btw, there is no financial incentive to destroying the world as the show clumsily tries to suggest. The evil managers plot in the show is just not compatible with its attempt to critique corporations, it ends up being complete nonsense.
And in a lot of ways this is fitting with BGS fallout. Can you imagine the american goverment making a bio weapon in those games? All they can show is evil corporations doing nonsensical stuff. In a lot of ways the big reveal in the show is consistent with Bethesda's vision of fallout and i wouldn't be suprised if that's what Bethesda had planned all along.