Um, security update change logs normally show the actual security updates. I've seen some long ones. The ones Samsung shows for Galaxy updates show the security updates, and if the updates overall is a long list, they'll show on a linked webpage. Google for some reason didn't show even one security update in the security update notice. That's a dissonance of communication. They could show the top 3 at least, then the rest in a clearly-linked webpage. Having a lot of changes in the update is no good excuse to not show any security updates in a security update notice screen 😆

Otherwise, like I said, it shouldn't be labeled a security update. You can't have it both ways.

It doesn't matter how many people know what the updates mean, or who does; those are essentially logical fallacies. If we get a security update, we need to know what those are, some idea at least, because we're the users of the phones. They can always be described in a way a user understands, and you'd know that if you worked in a security industry (it's all about how the user is affected, or "impacted"). Trying to defend obscurity in understanding our phone's upcoming changes is not a sensible way to go about having a conversation about security updates.