<prefix> + Ctrl + F not launching tmux-fzf

[cocoonkid]

possible duplicate of #34

I cannot make it work on Arch Linux. Tmux 3.2a .

I also tried remapping via TMUX_FZF_LAUNCH_KEY="C-f"

fzf is found and is available on the prompt with ctrl + T.

My only other bindings are:

unbind C-b
set-option -g prefix C-a
bind-key C-a last-window

### Allows us to use C-a a <command> to send commands to a TMUX session inside another TMUX session
bind-key a send-prefix 

# Activity monitoring
#setw -g monitor-activity on
#set -g visual-activity on

# Example of using a shell command in the status line
#set -g status-right "#[fg=yellow]#(uptime | cut -d ',' -f 2-)"

# reload config file (change file location to your the tmux.conf you want to use)
bind r source-file ~/.tmux.conf

### split panes using | and -
bind | split-window -h
bind - split-window -v
unbind '"'
unbind %

# Activity monitoring
setw -g monitor-activity on
set -g visual-activity on

# v and y for selection in copy mode
bind-key -T copy-mode-vi 'v' send -X begin-selection
bind-key -T copy-mode-vi 'y' send -X copy-selection-and-cancel

# tmux fzf
#TMUX_FZF_LAUNCH_KEY="C-f"

# hjkl pane traversal
bind -n M-h select-pane -L
bind -n M-j select-pane -D
bind -n M-k select-pane -U
bind -n M-l select-pane -R

[cocoonkid]

I found that Ctrl + F works now. But it works even though

TMUX_FZF_LAUNCH_KEY="C-f"