I've heard of a theory that says "A's hire A's but B's hire C's". The gist is that cream-of-the-crop interviewers actively look for open-ended-ness and the possibility that the interviewee may be better at things than they are, whereas less effective interviewers only look for people whose skills are a subset of their own (and by implication, design tests that only leverage the skillset they know, hence the "must have 5 years GraphQL experience cus I ain't got no interest in coaching you" attitude instead of "I am prepared to go out of my comfort zone and talk to people to get them up to speed on tech stack minutiae")

As a candidate, I've "fired" interviewers that were just wasting my time asking me about googleable trivia. There are other employers willing to pay premium for experience over technology memorization.