> They exploit Chrome, Samsung browser, Windows, Android, iOS, and Safari. It seems silly to say "if we had one more, it would have stopped them."

Samsung's browser and Chrome share 100% of attack surface; Safari and Chrome share likely near 70%. Windows and Android have Chrome built-in at the OS layer, iOS has Safari built in at the OS layer.

In this case, something like Firefox which shares much less attack surface would in fact solve the problem, because the problem is that other things have Chrome at the OS-level.