Try Farscape again and see if you can get to the end of the first series. It shifts majorly then when the main villian for the rest of the show turns up and the tone shifts darker and more serialised. It’s one of my favourite sci-fis of all time.
Theres been several times in TOS where people referred to Federation Credits or when Scotty said he “brought a boat”. I think most of us were under the impression that it didn’t go full post scarcity socialist until the replicators were invented.
Having WW3 and the Eugenics Wars switched in canon would make a lot of sense. Humanity goes to war and ruins civilization, then the augments take advantage and seize part of the planet for their fifedom. Then people like Colonel Green start purging anyone with radiation altered genes in the west as part of a general paranoia over “divergent” evolution.
I actually thought the plot of Picard series 2 was going to be something like this, Picard has to ensure WW3 happens, dooming millions to save his future. Instead we got, well what we got.