No, on my iPhone, it will insist on downloading the update, and the ONLY way to stop it (as confirmed by the "geniuses" at the Austin Domain Apple Store) is to immediately go into storage management and delete the update. This will only stop it until the next time (usually no more than a week or two) that iOS decides to download it again and ram the update down your throat. I'm getting really tired of doing this, especially since Apple's updates have a solid history of slowing performance, so I really just don't want them, in most cases. (I don't have a newer model iPhone, so most of the fixes, which address newer hardware, are meaningless to me...)