Resumes can easily be bsed and 15 min can also be bsed using buzzwords. I know a person IRL who basically switches jobs every 3 months, but is excellent at using tech buzzwords, while not actually being able to code or think algorithmically, they know all the frontend tooling. More than usual frontend eng would know. So they appear stronger than an actual frontend eng. They can talk about webpack config and plugins, but they can't build anything.

They can make a thing that would take a day of work sound like some sort of fantastical world changing undertaking.