I’d disagree, Kafka has a specific not-quite-nightmare but a very unpleasant dream air to many of his works, and that is what I perceive as Kafkaesque. Meaningless requirements, broken logic, ill-advised actors and some such.

If anything, I find The Trial to be better reflecting Kafka’s style, and be less unpleasant than The Metamorphosis maybe because it doesn’t depict family members that dream of getting rid of main character.