@_elena I suspect it comes from a legacy of Unix being a bunch of small terminal programs with a graphical interface, and concept of a Universal clipboard, only coming much later. But what it means in practice is I have used Linux on and off for 30 years and I still have no idea how to copy from Emacs and paste into another app (see, for eg https://www.emacswiki.org/emacs/CopyAndPaste).
@damonism
> I still have no idea how to copy from Emacs and paste into another app
YMMV based on the specific desktop environment and apps you're using, but ...
In my experience, all cut'n'pasting in desktop GNU/Linux is
* Bash terminal: CTRL-SHIFT-C to copy and CTRL-SHIFT-V to paste
* Everything else: CTRL-c to copy, CTRL-v to paste
Can you tell me exactly which apps on which distro don't fit this pattern?