Intel is old news on HEDT ever since Threadripper became a thing. The final nail in that coffin will be the November release of the third-gen Ryzen Threadripper making that 28 core Xeon obsolete. I'm curious if the new Mac Pro will even be available by then.
AMD builds admirable video cards, but the Radeon VII is inferior for professional work compared to Nvidia cards and CUDA.
MacOS is superior to Windows but inferior to Linux. A lot of people with HEDT builds are in Linux (myself included). I appreciate being able to do some of my favorite Unixy stuff in MacOS at a fraction of the speed, but for high end use it's still a joke.
I get that Apple has some products that are really good, but for a professional environment I am still unsure if I would really recommend to buy them.