> I am mostly interested by gains in security, gains in maintainability, and gains in simplicity. Dynamic libraries reduce the number of parts that need to be managed, reducing overall complexity.

I'd argue they do no such thing, the complexity is still there, only now your users can upgrade libraries and potentially break your app in ways you never expected.

Lets take openssl as an example, i've seen upgrades of that break applications easily.

Your app should take any dependency change as a new version or patch upgrade. And if you're releasing a new version of the application, what gain did a library provide? About none.

I've seen it from both static and dynamic sides, I vastly prefer static binaries cons to the cons I've seen from dynamic libraries.