Upon reflection the two plays have very little in common. Oedipus has to do with a man who seeks justice for the killer of the king only to find out that he did it and married his mom. Fences is about a man who cheats on his wife and can’t get his mind out of the old ways of doing things.
The complexity in Oedipus is that he marries his mom and kills his father. In Fences, his dad is mean and treats Troy like trash. The complexity is minimal but it sets a solid foundation for the characters themselves. I didn’t personally grow as a reader and can’t see how one could grow.
Thematically one could call the two books both having something to do with the main characters getting what they deserved, but Oedipus didn’t know any better, Troy did. While justice is at play in both pieces, it is far more dramatized is Oedipus. Fences is much more subtle about it