Doing my daily work routine I found myself pulling the latest changes from different branches many times per day so I thought it could be nice to automate that process.
I ended up doing this with a small script that run on nodejs.
This task can be achieved in many different ways using for example: bash, python, powershell, java etc.

Create file multi-pull.js

const execSync = require('child_process').execSync;

function nodeExec(cmd)
{
    return execSync(cmd, { stdio: [0, 1, 2] });
}

// Change the branch names to reflect your branches
let branches = ["hotfix_1", "hotfix_2", "dev", "main", "feature"]

// Change this path to match your repo folder
const repo = `C:/repo/test`

console.log(`\n\rScript directory: ${process.cwd()}` );

try {

    process.chdir(repo);

    console.log(`Actual repo directory: ${process.cwd()}\n`);

    branches.forEach(branch => {

        console.log(`\n\r----- Cheking out ${branch} -----\n\r`)

        nodeExec(`git checkout ${branch}`)

        nodeExec(`git fetch`)

        nodeExec(`git pull`)
    });
}
catch (err) {

    console.log(`chdir: ${err}`);

}

You can simply run the script in the terminal, with nodejs installed

https://nodejs.org/en/

node multi-pull.js

If we want to automate this even further we could set an alias for this

You don't know what an alias is? Please refer to this article: How to speed up Git terminal workflow with bash and other tasks

# Pull multiple branches
alias pmb='node multi-pull.js'

Then run it just typing

pmb

Script output

Script directory: C:\gitea\test
Actual repo directory: C:\repo\test

----- Cheking out hotfix_1 -----

Switched to branch 'hotfix_1'
Your branch is up to date with 'origin/hotfix_1'.
Already up to date.

----- Cheking out hotfix_2 -----

Switched to branch 'hotfix_2'
Your branch is up to date with 'origin/hotfix_2'.
Already up to date.

----- Cheking out dev -----

Switched to branch 'dev'
Your branch is up to date with 'origin/dev'.
Already up to date.

----- Cheking out main -----

Switched to branch 'main'
Your branch is up to date with 'origin/main'.
Already up to date.

----- Cheking out feature -----

Switched to branch 'feature'
Your branch is up to date with 'origin/feature'.
Already up to date.

A better approach

We can make this process slightly better.
Instead of adding new branches into an array we will read them from a json file, so if we ever wanted to add or remove a branch/es we could do it without the need to touch the javascript file. I could have used yaml instead of json but I am not a fan of it since leaving spaces or tabs would end failing while reading the file.

Folder structure

branches.json
multi-pull.js

Create a file called branches.json

{
    "branches":
    [
        {
            "label": "hotfix_1"
        },
        {
            "label": "hotfix_2"
        },
        {
            "label": "dev"
        },
        {
            "label": "main"
        },
        {
            "label": "feature"
        }
    ]
}

Update multi-pull.js

// Moudule imports
const path = require('path')
const fs = require('fs')
const execSync = require('child_process').execSync;

// Declare constant
const jsonPath = './branches.json'
const filePath = path.resolve(__dirname, jsonPath)
// Change this path to match your repo folder
const repo = `C:/repo/test`

function nodeExec(cmd)
{
    return execSync(cmd, { stdio: [0, 1, 2] });
}

console.log(`\n\rScript directory: ${process.cwd()}` );

// Read json file

let jsonData = (path) => {

    try {

        return JSON.parse(fs.readFileSync(path))

    } catch (error) {

        console.log(`\n Unable to read from ${path}: ${error}`);
        process.exit()
    }

}

let data = jsonData(filePath)

// Loop branches and pull

try {

    process.chdir(repo);

    console.log(`Actual repo directory: ${process.cwd()}\n`);

    data.branches.forEach(branch => {

        console.log(`\n\r----- Cheking out ${branch.label} -----\n\r`)

        nodeExec(`git checkout ${branch.label}`)

        nodeExec(`git fetch`)

        nodeExec(`git pull`)
    });
}
catch (err) {

    console.log(`chdir: ${err}`);
}