Hello,
https://tinyurl.com/2ceo56lc – do you mean “add to cart” button? WPML > Theme and plugins localization > Strings in the themes and Strings in the plugins > scan XStore theme and Core plugin, then find and translate strings via String Translation.
https://tinyurl.com/236aw3y7 – It comes from Germanized plugin, so contact support of the plugin or check answers online – https://wordpress.org/support/topic/hide-vat-text-and-and-shipping-cost-on-shop-page/
Regards
