I think near all of the time Linux sales are chalked up as "Windows sales" anyhow.
In my current job, and in my previous job as well, all the tech staff PCs are corporate order Dells/Acers/whatever. They all come with Windows, and the first thing the developer/ops person does is installs Linux.
It's basically easier to do it that way than to communicate the Linux requirement back through to whoever is actually ordering the PC.
I think the only time either organisation doesn't preorder with Windows by default is for servers.
In my current job, and in my previous job as well, all the tech staff PCs are corporate order Dells/Acers/whatever. They all come with Windows, and the first thing the developer/ops person does is installs Linux.
It's basically easier to do it that way than to communicate the Linux requirement back through to whoever is actually ordering the PC.
I think the only time either organisation doesn't preorder with Windows by default is for servers.