Yes indeed! 
In fact, Synaptic Package Manager has an entire category called “Installed (manual)” Check it out!
Interestingly enough, I also found the program under “Installed (local or obsolete)” [not sure what this means]
Anyways, while this is a far cry from the simplicity and elegance of the Windows Control Panel, it’s certainly a hundred steps in the right direction. It should also be noted that I can Upgrade or Remove any installed package using this package manager at any time. In fact, I was able to use this Synaptic Package Manager to upgrade a stuck “fwupd” (whatever that is) package that wouldn’t update as mentioned in this other forum I posted here. Honestly, this should come preloaded on the operating system. It’s insane that a tool this useful isn’t installed by default! [Hint, hint for any developers that might be reading this post]