On the UX/design side, this is familiar, but for slightly different reasons. Design challenges (take-home ones are basically showing you’ll work for free and show very little about how you work and think) during job interviews could be great collaborative exercises, if the challenges were done by the interviewee and company team members, collaboratively. This would give insight into how the interviewee thinks and works. But they’re mostly “here’s a scenario — draw a UI”; this favors people who can plop out a nice-looking drawing, and moves focus away from problem-finding and problem-solving (which are the real hallmarks of good UX).