I just want to make sure of one thing. When you look at Legacy Applications, in the upper right window is listed the application and in the lower right window is the information about that application, including location. Are you not seeing that? If you can see where they are, you can then go there and eliminate or uninstall them, if they are not part of the system itself.
Yes, I can see the application in the top window and the location in the bottom window.
It gives the location as '/Applications/ApolloWallet/Uninstaller/Dimfrag.app/Contents/MacOS/'
I don't know how to navigate to that location so I use EasyFind to identify all the instances of the application.
Once I found the application I deleted it.