This prima facie logical fallacy of "here's a nice £0 you can multiply anything with" has been addressed long ago:

> At this point, it’s pretty common for people to try to confuse things by saying, “aha! But Linux is FREE!” OK. First of all, when an economist considers price, they consider the total price, including some intangible things like the time it takes to set up, reeducate everyone, and convert existing processes. All the things that we like to call “total cost of ownership.”

https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/

Linux has come a long way, both in terms of matured installation processes as well as friendlier Desktop and GUI applications.

In Germany, some cities have migrated to Linux successfully.

Linux TCO is pretty good if you take a long-term view, because it is simpler and more predictable than some of its alternatives, and the organization can develop what it needs when it wants instead of following one single external corporation's roadmap.

How many thousands have big offices just to do powerpoints ?