Suspicious Package is a great tool to examine the contents of a macOS installation package. Looking at these packages in Suspicious Package I can see it's really just scripts to clean up things just like a typical Fix-It package. For macOS, Microsoft released an Office-Reset tool which is just some packages to reset Office to defaults and to remove Office Apps. Even Microsoft had to write Fix-It packages that run scripts to uninstall Office on Windows among other things. Commercial software vendors need to start taking it seriously. The topic is vast and complex and will vary quite a bit but developers need to learn how to install and uninstall their software properly. With some detailed examples and even a sample project and tutorial. Specific topics to include how to install your software and ensure it can be fully uninstalled. Maybe include references to them in Xcode. I would love to see Apple publish some best practices white papers for developers that are easy to find. There are exceptions, but they are few and far between. Sadly too many are not doing a good job of it. Ultimately, it's always up to the software developer to construct an installation and removal process that is reliable and clean. Apple is listening and has added this capability now it's up to the developers to actually use it in their Apps. If they use the new API system call SMAppService. That means the developers can definitely uninstall LoginItems, LaunchAgents, and LaunchDaemons when the App is trashed. "In macOS 13 and later, use SMAppService to register and control LoginItems, LaunchAgents, and LaunchDaemons as helper executables for your app. " Such an executable helper could also clean out configuration files and settings in Library folders. What's new is all the extra potential to remove other fluff. I've seen this prior to Ventura but it was only for removing a SystemExtension. Ventura added an SMAppService API to handle helper executables within an App bundle so they can be executed when trashing the App. But again, it's ultimately up to the developers. On macOS there are several similar utilities to remove left over junk. Developers spend a great deal of time on the software itself but they are not SysAdmins and they don't understand how things work in the operating system in the same way. This is a cross-platform problem on ALL operating systems. The problem is not all developers pay attention to fine detail when it comes to properly installing and uninstalling their software.
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