Certainly not necessary. TB looks to be a bit more economical. The fiber setup is pricey in the second video. I do love the idea of being distant from primary

Certainly not necessary. TB looks to be a bit more economical. The fiber setup is pricey in the second video. I do love the idea of being distant from primary compute. I run a Threadripper desktop and my mobile option is an old, low-powered laptop from which I can remote into one of several environments hosted at home.