Epic games - single puchase for free games

Epic games have option to 'add to cart'.

If FGS used that option to first add free products to the cart and then "buy" all of the games, it would allow it to ask for captcha only once per session.

The only problems that I could imagine are:
- someone has already a product in the cart before FGS it would have to be removed right before checkout and maybe readded after the free games checkout