no featured image in some posts

is it possible to exclude featured image at the beginning of the post, if I embed the video ? (i need a feature image to show up in the main page of the blog : https://smarteracademy.eu/articles) but i don’t want it in the content of the post – it looks stupid to have TITLE, then image, then Video…. ;-( https://smarteracademy.eu/comment-creer/

thank you for your comments
ps i am using page builder plug in.

The page I need help with: [log in to see the link]