Retrieve complete description of product via API

Is all the description entered in as a usual product description (ie: you’re not using extra content blocks on the product page or referencing metafileds? This might be easier to achieve with the GraphQL API which has a description field and a descriptionHtml field on the product object. It would look something like:

query GetProductDescription {
  product(id: "gid://shopify/Product/12345678") {
    description
  }
}