Maybe I'm being too cynical, but I can't tell whether this is a promotional piece for something.. That said, I do agree with the premise of the article that it's hard to learn "the stack", especially with the advent of generative AI. "Back in the day", when google spat out a link to something resembling your problem, you still had to deconstruct the answer given to apply it to your particular case. That required some…
But hypervisors did not disappear, they just got replaced. When we run virtual machines, they are usually backed by KVM (low-level) and qemu (higher layer). Sometimes there is libvirt on top of it too, but running qemu directly is not that hard.
And there is plenty of exciting research about this stack, for example KVM can be driven by things like firecracker and crosvm, and there are some rust projects targeting it too. There is also BSD's bhyve which
My impression is that it's not that people find hypervisors in general are boring, but just Xen specifically (or maybe all classic Type-1 ones? hard to tell with Xen being the only open-source representative).