Canonical chains might confuse and mislead serps. Therefore, They could misinterpret or disregard the specified canonical. The sitemap also enables you to adjust any attributes, together with hreflang. It presents an simply readable list of alternate URLs as well as their hreflang characteristics and will save you the effort and https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html