On Linux, Control-C and Control-V don't work for copying and pasting in terminals. The Control modifier is used for its original purpose of inserting control codes. Instead, terminal apps require an extra Shift modifier, like Control+Shift+C.
But what if there were hidden shortcut combos for copy and paste
Agreed. The post didn’t suggest that.
For people already using programmable keyboards global copy/paste shortcuts are a nice perk.
I spend nearly all my day in a browser or a terminal and as I use a terminal and browser that already support this, the effect is 99% complete.