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
I use Ctrl, Alt for applications, Super for the os/windowing. I hated MacOS which mixed these things. Luckily X.org let’s you do whatever you like, sometimes it’s just harder to configure. But I like it as it is.