Some applications leave little residue - just the app + a plist file or two.
Others install a forest of files and, in general, these come with an uninstaller. ( However even then, when their uninstaller is used, they often leave 'debris' lying around . Photoshop & Microsoft spring to mind )
When uninstalling an app on my mac - i normally put the app name into a free app called 'Easyfind' which i find is much more thorough than Spotlight in finding related files. It can be set to look for hidden files as well. The problem arises when the 'debris' has a different name to the app name. However with a little detective work ( incl googling app name ) one can normally find those out.
I have also been using Appzapper for more than 10 years to do a quick removal of apps. I only tend to use it when i know there is not much 'debris' ( which i find is the majority of cases ). There are cases however where it is completely useless.
Others install a forest of files and, in general, these come with an uninstaller. ( However even then, when their uninstaller is used, they often leave 'debris' lying around . Photoshop & Microsoft spring to mind )
When uninstalling an app on my mac - i normally put the app name into a free app called 'Easyfind' which i find is much more thorough than Spotlight in finding related files. It can be set to look for hidden files as well. The problem arises when the 'debris' has a different name to the app name. However with a little detective work ( incl googling app name ) one can normally find those out.
I have also been using Appzapper for more than 10 years to do a quick removal of apps. I only tend to use it when i know there is not much 'debris' ( which i find is the majority of cases ). There are cases however where it is completely useless.