I also work with a number of good DAW PC OEMs (companies that build DAW PCs). They tend to do even more for their systems. If you buy a custom DAW PC from a DAW OEM, and they do something different from what I indicate here, I would trust them to know what is the most stable thing for their system. They know the subset of hardware they target, and they know what they need to be able to support over time. They also know which subset of software they support, and how to get the most from it.