Proof, please, or is this another anti-Microsoft lie?
Go to the Dell site and use their configuration system to configure identical servers with Windows and with Linux.
The Linux system, while identical in every way, costs more.
This, of course, is not proof, merely evidence. It is impossible for anyone but insiders at Dell and Microsoft to know for certain, due to NDAs that keep the public from knowing the contents of licenses, even after the license period has passed.
Courts, of course, can bypass these NDAs, so the proof will come out during this trial.
My information comes under the ivy bush from a Dell insider. I can offer no definitive proof at this time, though there is plenty of evidence out there for those that want to find it.