With paginate how only i get the next and previous button pagination

If you want to override the default pagination you can customize the design. ref: https://laravel.com/docs/5.8/pagination#customizing-the-pagination-view

<a href="{{ $products->previousPageUrl()">Previous</a>
<a href="{{ $products->nextPageUrl() }}">Next</a>

or some custom html block like

<ul class="pagination">
    <li class="page-item"><a class="page-link" href="{{ $products->previousPageUrl() }}">Previous</a></li>
    <li class="page-item"><a class="page-link" href="{{ $products->nextPageUrl() }}">Next</a></li>
  </ul>

@tehseen

this is an example:

in your Controller instead of paginate() method, you use simplePaginate()

  public function index()
{

  $products = Product::simplePaginate(3);


  return view('products.welcome', compact('products'));

}

and then in your view you use

{{ $products->links() }} 

you can find the views for pagination in your app at :vendor/laravel/framework/src/Illuminate/Pagination/resources/views

When you use simplePaginate() the simple views are used according to the ui you load(bootstrap or no)