ldc-laravel-base-project/database/seeders/Development/UserSeeder.php

<?php

namespace Database\Seeders\Development;

use App\Models\User;
use Illuminate\Database\Seeder;

class UserSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        User::factory(20)->create();
    }
}