what is change in mass update eloquent in laravel 8 code example

Example 1: laravel create or update

// If there's a flight from Oakland to San Diego, set the price to $99.
// If no matching model exists, create one.
$flight = App\Models\Flight::updateOrCreate(
    ['departure' => 'Oakland', 'destination' => 'San Diego'],
    ['price' => 99, 'discounted' => 1]
);

Example 2: create new record via model in laravel

$userData = array('username' => 'Me', 'email' => 'me@yahoo.com');
User::create($userData);