I agree completely, but that doesn't change the fact that non-kernel software backwards compatibility is very high priority for Microsoft. I find it a bit dish

I agree completely, but that doesn't change the fact that non-kernel software backwards compatibility is very high priority for Microsoft. I find it a bit dishonest to claim MacOS did so much better without mentioning that they have a fraction of the hardware to support, compared to Windows. When the different hardware combinations are not greater than something you can setup in a warehouse, it's straightforward to test them all.