The difference between factions books in 40k is always hillarious.
Space Marine books are rarely ever anything else besides "big man shoot space gun", the literary equivalent of a sloppy action movie you can enjoy with friends while drunk if its well made enough, because that's what they think the audience wants. It is rare for one of these books to ever gain any sort of recognition or fandom relevance.
Ork books meanwhile are the same, but they can give it a new spin through the perspective of the Orks, which makes it hillarious. In a way you could consider Ork-books some sort of meta-analysis of the setting from the view of someone who barely gives a shit about most things commonly seen as important, but is instead heavily invested in their own little perspective. It is weirdly grounding.
But then the most anticipated book ever announced is for Necrons and runs with the theme of "the toxic old man yaoi arc continues" and the book that preceeds it is generally considered the best book they ever pushed out for 40k.
@thermidorvalkyrie the issue with Inquisition books is that they are capable of falling into absurd extremes. On the one hand the structure of the narrative allows for a view into the deepest dephts of the setting that protagonists of other factions barely would get to see, which works well when paired with an investigation- or mystery-narrative; but on the other hand you might end up with "I, Jaq Draco, will tell the story of Jaq Draco as wittnessed by a fly upon the wall, committing to Jaq Draco's experiences" type of books.
