Revolut recently banned using GrapheneOS without any justification. They're falsely claiming to do be doing it for security reasons. In reality, they're enforcing licensing Google Play. Revolut doesn't enforce security standards. It runs on Android 9 with no patches since 2018.
They just lost a customer. This was on my list of apps to use but not if they are this dumb
I use it un graphene and had 0 problems this far.