Leagues of Votann and their ironkin offer IMO a thoughtful counterbalance:

Whether one is made from meat or metal, kin is kin. Upon their creation Ironkin are fully welcome into their respective Hold by the rest of the Kin.[10]

Ironkin are computationally advanced enough that they have learned to mimic the squats' social behavior

...

Though the purpose of the Ironkin is to support squats in every aspect of their lives, they are neither held in servitude nor treated as lessers. The Ironkin are simply designed to want to be helpful. However, they can only imitate the emotions of the squats, and it is rare, but not unknown, for an Ironkin to possess ambition or seek to become a leader.

https://wh40k.lexicanum.com/wiki/Ironkin

WOW it's strange to see my fave rabbit holes on here lol. And props for linking Lexicanum instead of the Wiki That Shall Not Be Named!

Three very quick thoughts:

1. The Votann are remnants of humanity from the time when our Terran super-AIs ('Men of Gold') had built advanced ship-based AIs ('Men of Stone') to enable long-sleep-style interstellar colonization, and the enigmatic "Votann Cores" that guide them(/are them) are strongly hinted to be those same AIs, just degraded over ~19,000 years. They were sidelined later on, after humans discovered FTL through an alternate dimension, 'the immaterium'.

2. The story is very obviously based on Dune, and like everything else in 40k is turned up to 11 and stripped of nuance for effect. Some sentient robots ('Men of Iron') "revolted" after ~three millenia of brutal, Star Wars-style slavery, but the overarching "Age of Strife" was about human wars in an non-unified galaxy, with the robots being a primary weapon; the actual revolt/jihad was a symptom, just like it was in Dune.

3. The 'Adeptus Mechanicus' mentioned above are a parody of cargo cults (religions that worship technology they don't understand) mixed with a dystopian take on the themes of A Canticle for Lebowitz, and are very much depicted with derision. Whatever your thoughts are on AI, dear reader, please never say "abominable intelligence" like it's wisdom rather than the fruit of a dogmatic & ineffective cult!

Of course, 40k lore is notoriously amorphous; some authors have said/hinted otherwise. But I think the above interpretation is the most coherent and interesting and supported overall, IMHO. For example, #2 is supported by the fact that the space elves ('Aeldari'/Eldar) ruled the galaxy at the time and seemed unconcerned by humanity's antics, which wouldn't make sense in light of an actual ASI threat proper.