You'll find other specific webpages within your PrestaShop install that will surely take advantage of pleasant URLs: CMS pages, person account webpages, pages with quickly produced material.   You specify the main URL since the search engine could have problem determining which a single really should be the primary URL.  https://www.presta-addons-modules.com/en/seo/prestashop-seo-automatic-hreflang-tags-canonical-tags-on-all-pages.html