This is not a rhetorical question: How does other industries hire high knowledge well educated candidates ? How does doctors, mechanical engineers and space flight engineers get interviewed and assessed ?

As have already been reiterated in each and everyone of these threads (about leetcode/hackerrank/whiteboard coding) this is what the companies seem to think is the most proven, and produces most consistent results. But I would love to understand how other industries does this as well; does a propulsion engineer start to draw up a de Laval nozzle and calculate the exhaust gas velocity on a whiteboard? (again genuine question)