Engineers everywhere can finally put a word to it!

Overchitecture (noun) /ˈəʊvərˌtʃɪtɛkʧər/

Definition: The practice of creating architectural specifications that are unnecessarily complex, elaborate, or excessive, often adding no practical value to the project and leading to increased costs and inefficiencies. Commonly results in frustration among engineers tasked with implementing the design.

Example in a sentence: “The project suffered from overchitecture, with elaborate specifications that didn’t serve any real function.”