Hello, Thomas
By default, there is no such option.
To change the tag you may copy xstore/woocommerce/content-product.php and xstore/woocommerce/content-product-slider.php to your child-theme/woocommerce/content-product.php and child-theme/woocommerce/content-product-slider.php respectively. In your child’s files look for all .product-title with h2 tag and replace with your own -> https://prnt.sc/yLgqjYqGkCfZ
Kind Regards,
8theme team