(Setting aside how much I hate Apple for the moment)
A lot of these VR and mixed reality things are much neater in theory than in practice. I have tried the whole virtual-desktop-in-VR thing before and it just isn’t really much more productive unless maybe you are really pressed for space. You can just get another monitor, not have to wear a giant gizmo on your head and be able to drink your coffee while you work without issue.
Their silicon is really good. I’d argue it is mostly because they have a node advantage but it is what it is.
But especially in the MacBook Air it can only really show off its stuff in the short-bursty workloads of casual users (and Geekbench). My four-year-old PC would pull ahead quite quickly on any task when you actually have to run it at load for a while.