because you rarely see the OS anyway
That is true of any area of work, if you are working correctly.
Not so fast.
Under Linux, a terminal with the standard shell is immensely powerful tool.
On Windows there is simply no alternative. And if you use the huge big name tool - PhotoShop or Visual Studio - then the OS is useless to you anyway, since Windows provides only bare/no tools for the specialized tasks. And the big tools tend to eventually reimplement huge chunks of the OS inside of them, making the user often oblivious to the OS.
On Linux, you (can) have bunch of command line tools. And you can do (and automate) one hell out of literally any specialized (or generic) task using the same OS interface: the shell.
Taking DTP as an example, one of the first times I have seen Linux outside my office was a publishing agency. They had used the GIMP scripting interface from the command line to automate processing of the huge batches from the photoshoots. (PhotoShop gained the batch capabilities much much later.)
Under Windows, it might be true that seeing the OS means you are doing something wrong or inefficiently. But under Linux, the OS is a huge bonus.