In Google's case, at least they have the technical fig leaf of being able to blame third parties. I.e. Google only implements Play Integrity (nee SafetyNet) at

In Google's case, at least they have the technical fig leaf of being able to blame third parties. I.e. Google only implements Play Integrity (nee SafetyNet) attestation. Third parties decide what to use it for. Google has no control over those third parties. That said, in practice it's 90% about controlling and limiting open source / third-party Android forks.