Please add this custom CSS to the file style.css ( child-theme):
ul.products li.product h2, ul.products li.product h3, ul.products li.product .woocommerce-loop-product__title, ul.products li.product .wc-block-grid__product-title, ul.products .wc-block-grid__product h2, ul.products .wc-block-grid__product h3, ul.products .wc-block-grid__product .woocommerce-loop-product__title, ul.products .wc-block-grid__product .wc-block-grid__product-title, .wc-block-grid__products li.product h2, .wc-block-grid__products li.product h3, .wc-block-grid__products li.product .woocommerce-loop-product__title, .wc-block-grid__products li.product .wc-block-grid__product-title, .wc-block-grid__products .wc-block-grid__product h2, .wc-block-grid__products .wc-block-grid__product h3, .wc-block-grid__products .wc-block-grid__product .woocommerce-loop-product__title, .wc-block-grid__products .wc-block-grid__product .wc-block-grid__product-title{
-webkit-line-clamp: unset !important;
}