I am using Emacs 27.1 (GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.24, cairo version 1.16.0) of 2021-03-28, modified by Debian).
When I hover the mouse pointer over the "copy" button in the toolbar the tooltip shows me
M-w as keyboard shortcut. Good.
But for "cut" there is
<S-delete>. Would expect
And for "paste" there is
<S-insertchar>. Would expect
I am using
evil-mode also. Not sure if they interfere.
I do not know what
<S-insertchar> means or how to invoke them by keyboard. The emacs defaults
C-y definitely do not work. So I assume that the tooltip is correct because it do not show me the emacs default keys because they do not work.