I'm not sure we read the same story. By the time of the inciting incident, the technocrat cyborgs (Titans) have been enslaved by the machine leader, which has no humans in charge of it.
We did. Brian Herbert’s expansion of his father’s work is best left in the shelf.
I think you read a lot of books that are post-2000. IMO the original 4 or 5 books imply strongly that it’s man v man, not man v machine
A lot of long time Dune fans don't consider those books canon when discussing them in the abstract. Frank Herbert had a vision of what the jihad was and what it meant, and its eventual book depiction was fairly base.
You did, in fact, read a different story. You're thinking of the story told in the books by Brian Herbert and KJA - which were a distinctly pulpier take on the Dune universe than Frank Herbert's.