@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?