You are using Custom Single Product layout and container divided into 2 equal columns . I kindly recommend you to expand the width of buttons container and decrease the other https://prnt.sc/weFVzjH6d_eo
To assist you in the best possible manner, I kindly ask that you please provide me temporary wp-admin info (wp-admin URL, username, password) to the Private Content area, this will allow me to thoroughly investigate and address your concerns more efficiently.