This is my setup. There are many like it, but this one is mine.
I go between houses regularly, so I need my setup to be portable while having a "dockable" option when settling somewhere for a longer period of time. Along with this portability, I have a few stationary elements that stay in one place, but this usually doesn't have too big of an effect on my main setup.
I often tinker with OpenBSD, Plan9, and Haiku, typically through virtual machines. I also used to use Trisquel.
I will sometimes use Sway instead of Plasma if I ever need a more minimal, focused environment, usually for writing, studying, or coding.