@ben @thatfatguy_bg @_elena so either that burner phone is your old phone and may not get security updates anymore. Mine for example got it's last patch 2+y ago. Not really a good way to run banking apps, even when Google's attestation system the OS is OK.
Or you buy a second newish phone. But money also doesn't grow on trees, so that seems like a somewhat unpractical option for many as well.