Is there a market for a licensing body for this stuff? If you believe what you read on Blind, the top companies all test the same material, e.g. leetcode, CTCI, design system primer, Designing Data-Intensive Applications, etc.

Why can't I prove that I passed this screen once, then take a piece of paper to each of my FANG interviews and skip the technical part. Then maybe retake it every 5 years if you're interviewing.