EDIT: I'm not using a Microsoft account, that might be it?
Oh how quaint. Do you have a Ryzen CPU? If so you're leaving performance on the table, because core complexes are internally implemented as NUMA nodes. Windows 10 Pro does not ship with a NUMA aware scheduler. If you want that you're looking at $300[1] for Windows 10 Pro for Workstations. -- Personally I would not consider Pro a "standard" option since it doesn't work w/ ~40%[2] of new CPUs sold.
[1]: https://www.microsoft.com/en-us/p/windows-10-pro-for-worksta...
[2]: https://cdn.wccftech.com/wp-content/uploads/2018/08/Intel-AM...
AMD do disagree that windows 10 scheduler is a problem, for standard Ryzen anyway https://www.pcper.com/reviews/Processors/AMD-Ryzen-and-Windo...
Do you have benchmarks for the same cpu on Windows 10 Pro, Workstation and Server?
And we're not fine with it, we just can't do anything about it because Microsoft does not listen to complaints.
Cheers.
that's a great point, though. You can live in a world where you can have a software business that does not depend on Windows. 20 years ago, that was pretty much a dream.