App Store apps are the exception, which is great, but presumably we're not talking about that? If we are, then yeah, app stores solve these problems by making things actually sandboxed.
What I'm saying is that it's very easy now to take some arbitrary task - doing a compile/release cycle for example - and quickly knock up a simple signed macOS .app that sandboxes itself and then invokes the release script as a subprocess. Sandboxing is transitive and the .app itself can authenticate to the OS to obtain creds before passing them to the subprocess.
In the past I've thought about making a quick SaaS that does this for people so they don't have to fiddle with it locally and maybe some day I still will. But you can easily do it locally especially with Xcode and AI now. You wouldn't have to know anything about macOS development.