It reminds me a bit of Fallout, but more if you were one of the NPCs in the vault discovering things the hard way rather than as the MC walking into the situation after all the damage was done with a lot of outside knowledge. It does a lot of simmering, big reveal, repeat.
Season 3 is half in the past, and that's when things start to make sense on a big scale. I thought that made it fun overall. It feels a bit like a post apocalypse mystery rather than a typical action oriented story.