Without the need of hreflang, Google could provide the incorrect language version to people – like an English speaker in copyright currently being demonstrated the French version of one's webpage, bringing about confusion and also a high bounce level.  It can even allow you to include the default "x-default" tag https://addons.prestashop.com/nl/seo-zoekmachineoptimalisatie-vermelding/31857-automatische-google-rich-snippets-json-ld-opengraph-seo.html