Both of my banking apps work fine with a rooted GrapheneOS phone. If you want to have full control over your phone like you would a Linux laptop, to customize it to your own preferences and maximize privacy, there is nothing else gives you the same amount of control over the device that you bought and paid for.

The fact that people pay $1000 for a device and then not be able to fully uninstall pre-installed crapware nor fully block it from the internet is depressing.