Category theory is an extremely insightful subject but its generality, the plethora of structural heuristics it provides, as well as its apparent conceptual simplicity make it very prone to cargo-culting. And the Yoneda lemma, being one of the most prominent theorems in category theory and one a student encounters relatively early, is object of many misunderstandings.
This is a companion discussion topic for the original entry at https://matteocapucci.wordpress.com/2023/07/15/no-the-yoneda-lemma-doesnt-solve-the-problem-of-qualia/