Customizing Missing Model Behavior in route model bindings

By default, Laravel throws a 404 error when it can't bind the model, but you can change that behavior by passing a closure to the missing method.

Route::get('/users/{user}', [UsersController::class, 'show'])
    ->missing(function ($parameters) {
        return Redirect::route('users.index');
    });

Tip given by @cosmeescobedo