I think you're underestimating the effect of habit. As you work in an environment and become comfortable with it, you develop a workflow that supports that work

I think you're underestimating the effect of habit. As you work in an environment and become comfortable with it, you develop a workflow that supports that work. The longer you spend in a given environment, the more difficult it is when you finally do switch and have to relearn fundamental things. Fortunately for those switching from Mac to Linux, several people have made the switch already (or use both simultaneously) and have written free software to mimic much of the functionality they came to expect with Mac and missed in Linux.