I have a potential client that writes:
So, no we do not use a shopping cart. In ClickFunnels I create a checkout page which is integrated with our Stripe account and on our website the memberships are set up using levels in Paid Memberships Pro and so any option selected takes you to the Checkout page in Paid Memberships Pro. For the new events like Florida 2020 I have created my own page on our site using Gravity Forms and they have a checkout widget which we use which is integrated, again, with out Stripe account.
THAT is Greek to me