Schrems II and where the data is saved

Schrems II and where the data is saved creates a huge fun experience:

Researching where Saas tools have their server location. And this is often really hard to find.

Last example: Shopify.

Shopify is based in Canada. Based on some information it looks like they use US based servers. But also have an entity in Ireland, that handles EU data.

Does anyone have any experiences with Shopify concerning Schrems II?