I’ve been a sysadmin for years and I worked longer on Linux than I did on Windows.
Many of your points are management bullshit. The proof? In France the gendarmerie (country police) moved to Linux about a decade ago.
The thing with windows is usually that management want a whole solution out of the box, from a renowned editor, so basically Microsoft. The key point is that they want a contract with a company so they can discard the responsability of failures on someone out of their own company. The second feature is that they are boomers or anti-nerds, so they are never going to be seen using something on a computer that’s not mainstream.
The last problem is from Microsoft that worked hard these last years to remove any compatibility between office and other softwares of this kind. They also enshitified office365 very hard so that is doesn’t work well on Linux.
The question of the price is a fraud. Large companies need an it service for Windows on top of the licences and infrastructure. It’s way cheaper with Linux. The biggest work with an enterprise Linux is to make it compatible with the shitty Windows environment, and the compliance with the useless security thought for windows.