Nowadays it's almost impossible to uninstall an app completely, because most of them creating files willy nilly. And it's same on all known OSes. The side effect we see is system size growing in time.
IMO running an app in a sandbox should be the default option.
On Windows, I used to like sandboxie, which virtualized every write into single directory. Uninstall was easy as removing that dir.
This MS sandbox doesn't allow you to continually run an app in the sandbox, as all data get's destroyed on app close, so it's not sandboxie (or similar) replacement.
IMO running an app in a sandbox should be the default option.
On Windows, I used to like sandboxie, which virtualized every write into single directory. Uninstall was easy as removing that dir.
This MS sandbox doesn't allow you to continually run an app in the sandbox, as all data get's destroyed on app close, so it's not sandboxie (or similar) replacement.