Saw the video before I saw your post. Steve is taking his channel in an Engineering-heavy direction, and kudos to him.
As the video highlights, a lot of product development is about design-for-manufacture.
In my telecoms days, I would be talking to and visiting the factory every week, sometimes every day, about tweaking
product designs - how to make products better/faster/cheaper for the factory to make.
But no corner-cutting. These products were designed to run 30 years non-stop.