In the Ventura GA, the Settings pane still doesn't offer any additional information if the item is signed. Again, not very helpful. (E.g., it took me quite some time to figure out that the launch items from PhotoMinds LLC are for Arq.)
On the other hand, if the item is unsigned (e.g., from a MacPorts port), there's an Info button that opens a Finder window on the executable referenced from the plist.
I read somewhere that there's a new API in Ventura to manager background items that avoids the notification and, I believe, also doesn't put the items in the Settings pane.