Laravel 8 : Route [welcome] not defined

I am trying to add a new blade before the login screen. The welcome.blade.

So I

• created the welcome.blade.php under views
• added the route in web.php :

Route::get('/', function () {
    return view('welcome');
})->name('welcome');

• Updated the Authenticate.php middleware in order to redirect not logged in users to welcome:

protected function redirectTo($request)
    {
        if (! $request->expectsJson()) {
            return route('welcome');
        }
    }

But when I visit the url I get local.ERROR: Route [welcome] not defined

Also welcome is not in the list returned by php artisan route:list

I have trying clearing all cache but I still get this error.