Somewhat related: is there any way to bypass screenshot blocking in Android without root?
Used to be able to do it with Scrcpy, but that doesn't work anymore...
Correction: GrapheneOS is concerned with their so called "Android security model" more than anything else, and where that security model gives guarantees to app developers and service providers that harms the user's security, they merrily side with the developer's security against the user, at best give some more or less questionable reasons why that unfortunately currently cannot be changed, and at worst insult you for suggesting anything else.
I don't use banking apps, my banks have websites that work. Last time I tried to add my bank card to the Google wallet, it worked for a few days and then stopped. I've had a few apps that refuse to run but then worked fine with magisk.
For me, root on my own devices is a matter of principle. If an app doesn't work, then I don't want it. In the future I might carry a gimped android device for essential things like train apps if I have to, but then it won't be the device I actually carry in my pocket, it'll be in my bag. Mobile computing is for me.