This is pretty open ended? Best is like a threadripper or Epyc with ECC, stacks of the fastest nvme drives, and graphics card of suitable grunt. Usually a prebuilt small form machine that is quiet is the best work machine though unless you actually need the horsepower. They can pack a fast machine into a quiet small case these days.
Discussion
Needs to be a powerful.
Mostly will run Navisworks: https://www.autodesk.com/products/navisworks/overview with data centers and huge factories doing clash detection and other things I don’t understand.
Needs to run Revvit: https://www.autodesk.com/products/revit/overview
Most of the time these two simultaneously, while doing a whole bunch of other stuff.
They run a lot of 3D in the browser for their clients. Chrome and edge use 16gb ram alone 😅
I would lean to threadripper as gaming desktop shit does not have enough PCIE lanes. My old desktop now server is threadripper and the lanes are the best feature, multiple graphics cards and fast drives no problem, more capacity for ram. Just cost more that’s the only downside.