As for Mac and Linux, I walked into a training class with a Linux machine about a month ago, never having working on it before. But since I had worked with UNIX boxes back in the '90s, I was able to get up and running in no time, and was creating programs doing serious number crunching. Yes, I did not exercise all of the new features, BUT THE OLD FEATURES WERE STILL THERE!
I’ve been using computers since the 80s, and I’ve never seen people supposedly so skilled at computers look so pathetic using an OS.
Either they are seriously stupid, lazy, liars, or overdramatic.
Linux and Apple are welcome to these people. God help these souls when they go to a help board for those OSs with the attitude they exhibit here. They will get an earful.