This is the key thing a desktop should get right but it’s so wrong.
It uses different keys to both OS X and windows, whereas it really should seamlessly offer both key combinations. And it’s inconsistent between applications.
We’re so far down the Linux desktop path for cut and paste to be this broken.
Why should this be a problem? You are on a different system, learn to use it the way it was intended.
Ctrl-C has a different meaning in Unix. It has been so before windows and Macs existed.
Even this, I think has been fixed, though, as I haven't been using a clipboard manager for a long time.
Other than that, yeah, copy/paste ain't much of an issue. It's also really nice to be able to select text with my mouse and middle-click to paste (and it works across pretty much every non-game app I've used).