How to set up a recurring payment
It's entirely dependent on your business needs. The advantage of Commerce Recurring is that as part of the Drupal Commerce ecosystem, it gives you a complete toolset for building a subscription management interface in Drupal 8. This will let you completely customize the checkout flow, order receipts, other user interfaces and more, but it does require experience with Drupal 8 to build and maintain. For more information, review the documentation at:

https://docs.drupalcommerce.org/commerce2/developer-guide/recurring

If you just want to embed a Stripe widget, I recommend MoonClerk.