A 500+ page book is beyond most peoples tree time to explore from a comments faith alone so here's a summary I found (the quality of which is unknown) since I'm always interested to some degree in new perspectives (
https://www.supersummary.com/the-technological-society/summa...):
While Ellul separates technique from the individual machines that contribute to its reign, he maintains that machines represent an ideal state for the forces that govern technique. Humans, on the other hand, are not ideal at all. We lack the efficiency and predictability of machines. Therefore, Ellul says, technique is the social adaptation that exists in transforming the messy lives of humans so that they better fit into a world controlled by machinery. Further, in a somewhat terrifying turn of phrase, he adds that technique is "the consciousness of the mechanized world."
So humans adapt to technology and as technology becomes more efficient we just become cogs of technology is the core principle here and I can see how this relationship could be thought to arise however I completely disagree with it. Technology does enable efficiency at a fundamental level but it's not that humans become slaves to the efficiency or technique, it's that some humans chose to force other humans into increasingly more efficient means.
There is some feedback relation here in that in a global competitive environment as leaders around the world continue to compete in various forms they will inherently drive their populations into deeper efficiency I believe but the rise to all of this is because of the global competitive environment. It's largely social constructs and to some degree, finite resources that drive these behaviors and lead to efficiency focus. More than anything it's greed and hunger for power that drives this nonsense.
Most humans recognize when their lives become dominated by some silly efficiency and don't care to follow suit. Their want autonomy, to own their life and own their choices. They're instead forced into "the technique" so to speak as a secondary effect. The underlying effect is what needs to be rutted out, technology isn't the fundamental issue here, it's a set of human behaviors and institutions that exist and enable them.