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
On old keyboards with those dedicated Copy/Paste keys, they weren’t easy to reach.
Now with programmable keyboards and layers, they can be as convenient as Control C & V.
On the software side, there were many years where they weren’t well-supported, but that’s changing now.