To fully patch, yes, but the point is that Play Protect is detecting them before installation before they can be exploited, ie: on submission to Play Store or o

To fully patch, yes, but the point is that Play Protect is detecting them before installation before they can be exploited, ie: on submission to Play Store or on installation on devices. Yes, this is still a risk - if you tend to install random apks from the internet and disable Play Protect or run across an undetected modification of the relevant exploit code. But most users don't do that.