The plugin simplifies an access to recent branches:

Pre-requirement for this is golang >= 1.17

Also, please ensure you have a custom folder in your home directory where you can put the executable. In the example below it's bin:

mkdir -p ~/bin

echo 'export PATH=$PATH:~/bin' >> ~/.bashrc # or .zshrc

Feel free to skip this step if you already have such a folder.

fish_add_path ~/bin

git clone https://github.com/goodniceweb/git-last-branch.git
cd git-last-branch
make && make install

rm ~/bin/git-last-branch

Also, please don't forget to edit your ~/.gitconfig file and remove the lbr alias.