The Linux clipboard feels like home to me too, but let's not kid ourselves. Between primary, secondary, and clipboard, it's part of the learning cliff (cos it's steeper than a curve) that is linux. It's totally inscrutable!

ctrl-v and shift-ctrl-v and middle click and shift-middle click and tmux and vim.

The damned system makes no sense! Probably why it feels like home, once you're used to it.