I hadn't realised that Windows Server licensing was charged per CPU core. Yes - that'll be pretty expensive if you have 128 cores... maybe grab a copy of Debian?
In the business world the people running the business tend to select the productivity software that the business runs on, and then the operating system environment is picked on the basis of "what does this require".
The (sector leading) productivity software makes our staff 5x more effective in terms of work done in a given time than by unautomated processes. There is literally no suitable productivity software available for Linux in our sector.