Folks choose to forgo support to use Linux where I work.

I don't know how many of them are actually competent to support themselves. I only hear from the ones who are both incompetent and also manage to find out that I am (was?) a Linux admin.

Years ago my boss told me a researcher was using Linux and had a couple questions for me. That email thread could have been edited and turned into a Linux Administration for Dummies book. It was months and months. Every answered question led to three or four more questions.

That boss retired, and the new boss is a 100% Microsoft guy, so at least I won't have to support clueless Linux users anymore.

From time to time I hear about someone getting a Linux server set up. When I ask, they say the vendor is managing updates on the server. When I check I find that the server hasn't had any updates or reboots since it was installed.