Earlier quoted context omitted.
> They currently have around 20% market share (as Internet servers - Extremely big doubts about this. How would anyone even know? All the hyperscale datacenters built by FAANG must be 99.9% Linux, and those DCs alone would probably be enough to make 20% impossible to hit for windows.
See https://en.m.wikipedia.org/wiki/Usage_share_of_operating_sys... (Scroll down to servers) Incidentally this is public facing Internet servers. The % -inside- enterprises us much much higher. Tools like Active Directory allow you to scale enterprise operations, which is important for companies that have hundreds-of-thousands of desktops etc. In any event your estimate of 99.9% is unlikely. AWS offers Windows based…
We know that all the top 25 websites are 100% Linux and represent a lot of servers each.
Also a whole lot of that cited report seems to be misidentified. The top Windows site other than Microsoft properties listed is nih.gov, which looks like Drupal on Linux behind Akamai GHost -- all Linux.
I do accept that Windows is probably about 20-25% of server instances and slowly contracting. But public facing webservers and the infrastructure that directly supports them? Nothing close to this.