In additon to elisolution's response previously mentioned, this also checks regardless of whether we are literally on the home website page (not simply whether or not the canonical was set or not). I tested this Alternative a bit and as far as I can see, it works as expected. Or else, https://addons.prestashop.com/pl/seo-pozycjonowanie-naturalne/31857-automatyczne-google-rich-snippets-json-ld-opengraph-seo.html