Hahaha… Thanks @jabostick.
Your understanding of the different stacks are fairly accurate but there is more to them than just that.
Stripe allows you to take payments on your site (if you don’t have a store) for stuff like snail mailing an invoice and having the client pay on your website. Recurring Charges are a feature here for memberships (like a club or an online group/subscription service)
Stripe Checkout is basically the same except that it is online store oriented and has more payment options (Bitcoin, AliPay and Remember me feature)
Both are single instance purchases… i.e., you cannot continue shopping so payment is handled per item or you have to define a group of items a-la-cart style. Both require a valid SSL certificate.
Does that help with the descriptions a bit better?
To be honest, I haven’t played with them yet and am working my way through the various themes and stacks that I did not have before I was assimilated… 
Thanks, for further queries, can you please start a new thread so that the items are more sortable/searchable? Appreciate it muchly Jason.
Brad