FWIW I’ve got grapheneOS without google play services on a financial profile, and all of my financial apps work including: -Two credit card apps -Bank app -Three investing apps -Two direct transfer apps
One of the credit cards apps (amex) does give a “warning” on each page that it needs play services to function but if I click Ok it actually still just works.
This is about Apple helping build tools for policing. Not about giving over its customers data to police.