I use KICAD on Linux - since well quite a while (years now). I am not a Mac user, so I am not the one to comment on Apple PCs. Linux workstations can be great for people doing a particular type of specialized work, but Windows is much better for general purpose use.

I do not try and use Linux myself as a workstation - I use Windows, but if I was a Web developer, I like developing with open source tools and languages, so I would use a Linux workstation for sure. I think trying to start with Linux as a Workstation is daunting, and you just do not understand why things are the way they are. None of my servers has any graphical interface, which matters less and less, as more and more programs on the server side have web interfaces. Also a full backup is just a matter of copying a few files. The reason I like the Virtual machines so much is the fact I can upgrade to new hardware without needing to rebuild anything. My friends in the Windows Server support business just shake their heads when I suggest they should be looking at Virtual machines instead of clean installs on new hardware - they keep telling me that there are too many problems. I also run a number of Linux servers and workstations as Virtual Machines, and for some reason, it just seems to be way more successful then trying to run Windows virtual machines on a Windows based PC. Linux is just such a good server to work with, and Windows servers are just so bad. It seems that the best way to get into linux is from the server side.

Diptrace vs kicad