Brazil Checkout: Headless + Storefront API

[Shoreh]

Hey everyone! I wanted to seek help with my Brazilian merchants' enquiry about bringing their checkout solution back to Shopify.  In order to do that, they're asking about using Headless + Storefront API, in which they would transact through Shopify but develop their own front end.  Knowing all the unique circumstances around Headless & Brazil's use cases, do you guys know have any input and/or recommendations on this? Any help would be appreciated. TIA!