How do I reset Storage App's Index?

I deleted some games I played to free up hard drive space on my Mac and the Storage utility is still reporting the game taking up space even though I deleted it the other day (restarts don't help either).

I tried various guides to delete the index and it doesn't seem to affect the app index (only the files like Documents).

One guide I followed is: https://www.cnet.com/news/what-to-do-when-about-this-mac-lies-to-you/

This is what my storage app looks like:

The list of available applications on the system is cached by LaunchServices. You can reset LaunchServices by running the following, which will take some time.

/System/Library/\
Frameworks/CoreServices.framework/\
Frameworks/LaunchServices.framework/Support/lsregister \
  -kill -r -domain local -domain system -domain user