I do not know how relevant this link will be – the issue that had come to mind was with Fairphone 4, actually … but it illustrates the run around folks can have with these apps sometimes!
I do not like some of the impacts of Advanced Privacy, I guess you have it already switched off or at least Hide my IP off before any experimentations?
… and edit … Fake my location will mess with geo-location, if the app uses geo-location at app store level.
I guess you already ruled out accessing the bank via an HTML solution, that is a web page that can be saved to the Home screen, aka PWA.