But why would I want to run windows if it is the ARM variant with no useful software?
Windows on ARM sucks. The only reason I'd want to run Windows is for legacy compatibility with old x86 based Windows software - if that isn't possible because the ARM variant is the only one that runs, then why bother? Every other mainstream OS (and most niche platforms too) has a better software library than Windows on ARM.
The clue was in the words that I used: "Microsoft will improve Windows for ARM"
By which I mean they will finish it and bring it up on par with x86 Windows. Because the new machines running it will be ASi or Nvidia ARM.
Tell me an RTX 3090 is slower than an A14. I dare you.
It would literally be the size and weight of a brick. And be too hot to touch.