I think Discovery make the wrong choice going that far. I get they wanted to go further than anything we'd seen - especially with Daniels and the "temporal cold war", but 800 years is a long time, and there's basically no change.
Perhaps stable and unchanging is a feature of space-faring civilisations. The Dominion was 2000 years old by 2380, Vulcans had intersteller travel for 1500 years. Humans made massive advances from 2050 to 2250 in propulsion, massive advances from 2250 to 2400 with things like Replicators and Holodecks, but perhaps after the 25th century theres not much more to advance. Sure warp gets faster, replicators get fancier, holographic emitters get smaller (the tricombadge seems related to the doctor's mobile emitter), but there's not the leap in technology level from 2400 to 3000 that we saw from 1800 to 2400.
Perhaps once you reach a certain level you plateau. Iconians, TKon, Dominion, all lasted thousands of years with no real change.