Too Like the Lightning: Terra Ignota, Book 1

Too Like the Lightening is set in a futuristic world. A general peace is established with various "clans" that have differing views of the world. A high-speed transportation system is available that lets people go just about anywhere. Religion is taboo and having three are more people talk about religion is considered a church. Gender is considered archaic with most people considered gender neutral. Sexual activity is still a thing and the mere concept of gendered talk or dress is often found to be sexually promiscuous. The past is well respected in this world and the story is told often from an 18th century style of language. There are also computer-like people that are more machine than man.
While this utopian dystopia of a future world is built up in great detail, the story itself is somewhat confusion. There is a murderer who kills people in various ways. There are some conflicts between the groups. There are toy soldiers that are animated. Killings of seemingly insignificant people are used to alter the course of world events through their association with others. (In some ways it seems similar to current events.) It gets confusing.