Google suggests not using rel="canonical" throughout region or language variations of your site. But You may use it inside of a country or language Model. PrestaShop also will allow people to create different Hreflang tags and Canonical tags for different languages, which is especially beneficial for multilingual e-commerce sites. On https://addons.prestashop.com/en/seo-natural-search-engine-optimization/30904-automatic-hreflang-tags-canonical-tags-all-pages-seo.html