No! I was mistaken. Only F-Droid was installed. On Aurora Stora I can find the app 
It works!!!
Thank you, user1, you were exceptionally helpful
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could you mark as solution as to what helped you for people who search into forums will be able to find it
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I’d have to mark more than one answer as solution which is not possible.
Ask the bank if they also have physical 2fa generators. Sometimes called Sm@rtTAN. Some support them but just don’t really advertise that they do.