Hello,
We have “Request a quote” button but we don’t have the option to place the button next to Add to cart, only below it using Single Product builder https://prnt.sc/12ar81l
If you use third-party plugin you can contact plugin author and ask them what hook they use to show that button and ask them about simple customization to your child theme functions.php to change the hook and show it next to add to cart https://www.businessbloomer.com/woocommerce-visual-hook-guide-single-product-page/
Regards