I'm at home on a Mac, but I also love to explore alternative OSes in general, so I'm comfortable with most Linux based OSes out there. My advice to someone trul

I'm at home on a Mac, but I also love to explore alternative OSes in general, so I'm comfortable with most Linux based OSes out there. My advice to someone truly wishing to leave Macs and/or macOS behind is to try out Elementary OS. It will be a familiar visual and contextual experience and is widely compatible with commodity hardware. The terminal is tweaked for speed and ease of use, the native apps behave themselves and follow Elementary's strict (for Linux) HIG, and it's one of the most beautiful OOTB distros out there (that's purely subjective but it comes from someone who loves the macOS GUI). Before selling your Mac though, give eOS (or whichever Linux you're looking at) a go in VMWare Player or VirtualBox. Make sure it's a good fit, and please, please, buy decent hardware that is Linux-friendly once it's time to switch. You can even avoid hardware fumbles by installing Elementary on your Mac and keep the hardware you know and love.