Foe is a bit mid, I can see why some people were disappointed. With that being said, I did enjoy it. It's what some might call "quietly unsettling." This is NOT a horror or thriller, and it doesn't go into much detail with the sci-fi elements either, but if you read between the lines, that's where it gets interesting. I like the writing style, it's a quick read, and after looking up theories/explanations, I'm satisfied with the ending, which felt slightly anti-climactic at first. 

I think this has great movie potential, which is kind of the whole reason why I read it. I'm really excited for the movie adaptation that's coming out on October 6th (2023). I'm a reader but I also love movies, and I know the book is almost always better than the adaptation, but I think there's potential for this movie to be an exception. If not better than the book, let's just hope that it's at least almost as good.

Around a year ago I both read and saw I'm Thinking of Ending Things, which was also written by Iain Reid. That book is much better than Foe in my opinion, and I thought the movie was really good too.
Different, but good in its own ways.