https://github.com/junegunn/fzf#using-linux-package-managers
Key bindings (CTRL-T / CTRL-R / ALT-C) and fuzzy auto-completion may not be enabled by default.
Refer to the package documentation for more information. (e.g. apt-cache show fzf)
I use the default Gnome shell and installed fzf from the Fedora repository.