how to put a print screen in a doc

I want an exact duplicate of a statement, so I did a Ctrl/Print Screen. I want to print it to an LibreOffice document but do’t know how to do it.

  1. do Ctrl/Print Screen

  2. open LibreOffice Writer and push Ctrl+V

This does not work with LibreOffice version 7

Actually, in the Windows world, Alt-Print Screen is better suited for this situation. Alt-Print Screen will copy only the active window. Ctrl-Print Screen will copy the entire desktop.

I’m not sure for other desktops.