As the screenshot shows, the app “Vivi” was “installed” from my work profile on Google Chrome (my assumption). I never installed it but the app icon showed up under my Plasma Application list. How do I make sure that this Vivi is NOT installed on my system, and how to remove it from the application list without having it popping up again in the future? Thanks a lot!
Nothing is actually “installed” on your system. That looks like a path to a webapp for some website. The whole thing should reside in your browser’s profile.
You can type chrome://apps in your browser address bar. If it shows there right-click on it and remove it.
If not, look under ~/.local/share/applications and look for .desktop file associated to this “app”.