Graphene is very attractive, the two things that prevent me from going are a) using your phone as a credit card, I'm too attached to that now. b) work profile does not work with rooted phones
GrapheneOS isn't rooted. Did you mean that your corporate MDM app doesn't run on non-certified OSes?
There are multiple options for tap-to-pay on GrapheneOS in the UK and European Economic Area. It depends on where you are.