That’s good to know. Is there a list? Maybe a vocal community of computer literate people with money could loudly move to banks that do work (regardless of which phone they have).
That's like saying there's no freedom in USA because I didn't get a visa to visit. We are talking about the freedom of Google devices. And you are talking about banks not letting you install their apps on a non Google OS. Totally different things.
The hardware is nominally open only because they enforce participation in their software ecosystem via other means.