ordainedclicks

One of the only big downsides I've noticed with GrapheneOS is that several banking apps don't work with it at all thanks to being tied to Google's verification ecosystem.

Luckily I have hardware 2FA keys from my bank so I can authenticate using that. It also slightly decreases the suck-factor from whenever the phone decides to fly off down a drain. This may not be the case for you, so do your research on what you need for daily living.