xclip is for X11, this is what man X11 has to say about it:
xclip - command line interface to X selections (clipboard)
For Wayland there is wl-clipboard that provides:
> rpm -ql wl-clipboard | head -n2
/usr/bin/wl-copy
/usr/bin/wl-paste
You probably have to install the package as it is not installed by default.