Hello, I bought a 'new' 2nd hand Google pixel 8 pro today, the phone already had GrapheneOS on it (which I didn't know beforehand and don't need yet). So I had GrapheneOS overridden by Android at home using the normal method but now I'm wondering if there could still be malware on the phone that this didn't remove? At first glance, the phone seems to work normally and no malicious apps have been detected. Thanks in advance