Ok, let’s take a bit of a dive into that premise.
AMD, Intel, Nvidia. You are likely correct. Almost every PC out there will be built using these primary components.
Two Intel or AMD CPU’s with the same number on the box are going to be darn close. If you are O/C’ing that CPU you will find there are differences in the tolerances from one to the next but overall, negligible difference.
This is about as far as I am willing to go with the “no 2 PC’s” premise.
Now lets look at GPU’s. Pick a number. Either a AMD or Nvidia chip. Now pop into Amazon and shop for that chip. How many different board manufacturers are there? What is the price range? Remember to filter just that one chip.
I haven’t shopped components since last August when I built my MSFS system. I first decided on my CPU. I went with an i5 8400. Then I looked for MB’s that supported that CPU. Hundreds of choices from nearly as many manufacturers. Boards from $150 to $750. The number of possible options were soul destroying. Built in WiFi or no, 1 NVME or 4, 2 RAM slots or 4, Optical audio or no… on and on. I settled on a board maker I trust with the options I wanted. I ignored the price point.
Now we need to pick a graphics card. Same issue here. Hundreds of choices for the same GPU. Then we start shopping memory. Wow! the price ranges for 32GB of memory. Power supplies, same.
After selecting my components and placing the order, I decided, just for fun, to see how cheap I could have gone. Selecting the same base. i5 8400 / 2060s /32GB. I could have purchased all my components for just over $1000. The order I had just placed, $3150.
No way that the $1000 no name brand hardware would have been as reliable and trouble free. I cruise along nicely in MSFS with 0 CTD. I do hi end 4K video processing/editing. No issues.
Between case, cooling, PSU, CPU, GPU, Mem, MB, even quality of internal cabling and routing, the number of possible combinations, price ranges, hardware quality and reliability is off the chart.
Now that you have a system built, let’s set it up. Are the MB drivers proprietary? Are you using the default intel drivers that Windows wants to install? Does your Wovelot card use their own driver or have you installed the Generic NVidia driver?
So you have your PC up and running and you install MSFS. Now you start plugging in head trackers, control boxes, joysticks, throttle quadrants, pedals, headsets, VR. Each with there own proprietary drivers and configuration software. You start running into issues because you can’t get your headset software past your virus protection.
Yup. There are only really 3-4 primary players in the computer world. The end result though, once that "FLY NOW" button lights up, is that no 2 PC’s are ever the same.