From my experience, its overall good. Its basically stock android, meaning no google smart features and apps by default, with more control over apps and google services. But for caution, some apps may break. You will have to mess around with the app settings to fix them. Also some apps will not work such as the google wallet app due to the OS not being acknowledged as official by google.
In short, its a more security focused OS that may require more involvement in configuration.
Google Wallet didn’t work last time I checked, but contactless payments worked perfectly well by setting my banking app as the payment app.
Not all banking apps work due to the system integrity checks they do. Support for your banking app can probably be confirmed here.
Confirmed my app works on GrapheneOS but doesn’t seem to implement payment functionality. Guess they rely on google/apple/samsung pay 🤦
Now that I know this is a thing any banking app can just do, I am so disappointed in the predominance of “digital wallets”
