>you either have a PhD or the exact experience (threeJS, unity etc) as above because that will help you set foot on industry
PhD seems extremely overkill unless you know the exact kind of graphics programming subniche you want to work in and are deadset finding the half dozen labs focusing on that. I don't think you need that kind of specialization to get a gig in games or VFX if your goal is indutry.
Exact experience is exactly why people ask about what to learn. If you know most people use UE5 it might make more sense to focus on the high level stuff to appeal to studios than to dig into Vulkan for years.