Ubuntu Terminal using bash autocompletes only using alt+tab

I'm using Ubuntu 22.04 lts.

When I like to use the Tab to autocomplete any command, i.e cd /path/to/file, vim /path/to/file, apt, etc, pressing the Tab key itself won't do anything. Instead, if I hold Alt+Tab, it then behaves as I'd like to see.

How can I change the behavior so that pressing Tab alone completes the bash statement?

1. Open the file /etc/bash.bashrc by vim to edit it.

sudo vim /etc/bash.bashrc

2. Find these code

#enable bash completion in interactive shells
#if ! shopt -oq posix; then
#      if [-f  /usr/share/bash-completion/bash_completion ]; then
#          . /usr/share/bash-completion/bash_completion
#      elif [ -f /etc/bash_completion]; then
#           . /etc/bash_completion
#      fi
#fi

3. Unlock these code by delete '#'

#enable bash completion in interactive shells
if ! shopt -oq posix; then
     if [-f  /usr/share/bash-completion/bash_completion ]; then
          . /usr/share/bash-completion/bash_completion
      elif [ -f /etc/bash_completion]; then
           . /etc/bash_completion
      fi
fi

when finished, use :wq to save and quit.

4. enable the change by reload it.

sudo source /etc/bash.bashrc