While Gary Illyes, a Google analyst, thinks that search engines like google and yahoo may well count less on hreflang plus much more on automatic language detection in the future, for now, the tag is our greatest guess.  You can utilize Ahrefs to unravel this situation – just go to https://addons.prestashop.com/ru/seo-natural-search-engine-optimization/31857--rich-snippets-json-ld-opengraph-seo.html