>Is it because iPhones are more likely to be up-to-date in terms of patches and security updates, and hence android is easier to crack?
I don't want to make premature judgements without factual supporting evidence, but my personal anecdotal evidence suggests that these two guesses might be the correct ones. Me and some of my friends got S8+ a few years ago, back when it was Samsung's flagship smartphone. Among other things, we were all appalled by the update cadence. We were getting security updates, not even talking about major OS updates, about 3-6 months after Pixel phones were getting theirs. I cannot even imagine the horror show that non-flagship Android device owners have to go through in terms of updates.