This is already what is happening with SafetyNet on Android. For now most applications don't require hardware attestation so you can pass by spoofing an old device that didn't support hardware attestation but I'm sure that will change within a decade.
Being able to trust the security of a client can protect against many attacks and it is up to web sites to evaluate what to do with into information that a client is proven to be secure.
SafetyNet means the app checks to make sure you're not rooted or running a custom ROM because those are considered a security risk. If you are not running a locked-down OEM ROM, you can't run many apps including banking apps.
Microsoft's Pluton on-CPU attestation technology means this is coming to PCs.
>means the app checks to make sure you're not rooted or running a custom ROM
The purpose is to be able to tell if the user is running a version of the app is from the play store or to be able to tell if the device's integrity isn't compromised meaning that it can not rely on the security guarantees the OS provides. Banking apps are not against people using custom ROMs. They just want to ensure they are running on a secure operating system.