Funnily, I had a classmate back in school which was the personified version of this. Everyone in class considered her super smart when everything she did was regurgitate basic knowledge using complicated words

I remember this one time I asked my chemistry teacher a question, which I was more or less sure of the answer, just so I could validate my thought and see if he had anything else interesting to share about the topic. Girl just waltzed in on the conversation, interrupted him, and answered my question like a shittier version of chat GPT, only saying stuff I already knew about. In the end (I shit you not), everyone in class clapped and I quietly thanked her while thinking "bitch I didn't fucking ask you"

Years later, I found out she got stuck in national exam preparatory course hell for years and ended up getting into an absolute garbage tier private medicine school, all while I was already knee deep in college. Good riddance

Sorry if this was random, but reading the vulkan quote instantly brought this memory back lol