Based on this information, I cannot consider myself a Hugo winner and will not be citing the 2023 award result in my biographical details, or on this site.
Definitely a lot of horror elements in the few I've read (Children of Time + sequels, Cage of Souls). I've only just scratched the surface, the man is a writing machine, but it does seem to be a trend so far.
He blends genres a lot and even his own work is kind of eclectic and all over the place, but his worldbuilding and the ability to take a totally alien concept and make it utterly believable are just top notch.
I tried reading the Cage of Souls series after absolutely loving the Children of Time series, but I couldn't really get into it. Do you recommend any of his other works?
If you want something short and easy, try Elder Race. It's a novella, but very well done. The good thing about him is that he's so prolific, there's a lot to choose from.