How do you obtain objective facts about a product?
They would come from the manufacturer manual or a spec sheet or something like that.
Windows has some objective, known, minimum hardware requirements. Are they open to interpretation?
What kind of products are you buying that make you wonder how to get objective facts about them?
I don't think that it makes any sense to choose OS by minimum requirements.
Here is another objective fact about Windows: https://news.ycombinator.com/item?id=41818815
Your feelings however seem to be good arguments?