Permission toggles are are what things apps have access to, Grapheneos gives:
Sensors permission (this is how your phone can use sensors to determine if you are walking, moving, how far your phone is away from your face)
internet permission toggle (this allows you to control what apps can directly connect to the internet)
Storage Scopes (You can control what files or directory any app that uses legacy storage permissions have access to instead of blank allowing all files access to the app)
Contact Scopes (This allows, like Storage Scopes, for you to control what apps can access contacts and who’s contact the app can or can not see)
Permission toggles are are what things apps have access to, Grapheneos gives:
Sensors permission (this is how your phone can use sensors to determine if you are walking, moving, how far your phone is away from your face)
internet permission toggle (this allows you to control what apps can directly connect to the internet)
Storage Scopes (You can control what files or directory any app that uses legacy storage permissions have access to instead of blank allowing all files access to the app)
Contact Scopes (This allows, like Storage Scopes, for you to control what apps can access contacts and who’s contact the app can or can not see)
You can and should give https://grapheneos.org/features a read.
As for banking apps, depending on what they are, may work. Paypal and some others work.