product landing page with check out

Hello,

Unfortunately, there is no such option available to have the checkout/order on the same page.

Thanks for sharing the suggestion/feature request with us, I am forwarding this to our development department for considering to add it in the theme, but I am not giving you the guarantee for that because please note that a theme cannot satisfy all requirements as it may occur theme heaviness. Sometimes it may require your own customization. So if the development department finds it fit with the theme environment then surely they will look through it.

Best Regards.