Let's be real, it's just on par with the Zen 3 in single threaded perf which is on a 7nm+ process. When Zen 4 comes it might be moot.
AMD's entire market cap is practically on par with Apple's cash on hand (so very different companies in terms of size/capability) yet they are equal in performance single threaded? Not only that, in practical terms the AMD chip is very desirable in many situations because it has twice the cores.
We do have an entire shopping list of ways in which Apple's ARM core implementation leads vs. x86 in their five watt iPhone chip.
https://www.anandtech.com/show/16226/apple-silicon-m1-a14-de...
I don't have a Surface Pro X and would never buy one, but it's an example of how ARM isn't necessarily the answer to the user's problem, because the user may well use his device for more than running Microsoft Office and browsing the internet.
A glimmer of hope from https://docs.microsoft.com/en-us/surface/surface-pro-arm-app... on Oct 1, 2020:
With 64-bit emulation coming soon in Preview via the Windows Insider program, you'll be able to run 64-bit (x64) apps on Surface Pro X.
> Where's the ARM native version of Visual Studio?
Well, there is VSCode... [2]
[1] https://docs.microsoft.com/en-us/surface/surface-pro-arm-app...
[2] https://www.zdnet.com/article/microsoft-new-vs-code-update-i...
Just as there was no excuse for the Surface RT not having a touch native version of Office despite them selling it as a tablet, or the Surface Pro X not having ARM native versions of ALL of Microsoft's software.
Where's the ARM native version of Visual Studio?
How can you expect other vendors to take Windows on ARM seriously if Microsoft doesn't?