Hi szymon-0481,

Thanks for reaching to us and appreciate your patience.

Please add below Custom CSS code to Theme Settings > Custom CSS > Global custom CSS

.woocommerce.archive .product-grid-item :is(.product-image-link,.hover-img) img,
.single-product .woocommerce-product-gallery img{
    width: auto;
}

Wishing you a Merry Christmas.

Regards,