how to use model in different ways in laravel code example

Example 1: laravel update

<!-mass update-->
App\Models\Flight::where('active', 1)
          ->where('destination', 'San Diego')
          ->update(['delayed' => 1]);

Example 2: laravel find query

// Retrieve a model by its primary key...
$flight = App\Models\Flight::find(1);

// Retrieve the first model matching the query constraints...
$flight = App\Models\Flight::where('active', 1)->first();

// Shorthand for retrieving the first model matching the query constraints...
$flight = App\Models\Flight::firstWhere('active', 1);