This is an old article but it explains Foundryside better than I could. It’s a fairly standard fantasy setting with its own unique form of magic, and yet the story includes multiple cyberpunk tropes.
The article was written before the rest of the trilogy was released. I’ve read the trilogy and unfortunately, I’d only consider the first book to be cyberpunk. The series goes pretty far off the deep end to the point that the third book is about (I’m trying to use spoiler tags here):
spoiler
two hive-minds battling for control of humanity. All the protagonists are part of one hive-mind and are trying to stop the evil hive-mind. The two hive-minds aren’t even present in book 2 so this was a pretty drastic departure from the rest of the series.
I really liked The Divine Cities. I struggled a ton with this trilogy.