For the record, with my 6+ years of Linux experience, Zorin OS, Feren OS, Makulu Lindoz, POP OS, I've never memorized all the terminal commands either. If I have to install, remove, or update software via the terminal, I'll copy and paste commands in from sites I get through web searches.
Yes, and I think it goes without saying, I make sure those are reputable sites, ones that are secure of course.
But most of the time, Synaptic Package Manager works for me, and there is no need. Sometimes, certain software won't even be in the repo, either cause the repo hasn't been added to the OS, or the software never was in the repo to begin with.
In cases like that, you can install via a DEB file. And some software comes with their own installers just like Windows believe it or not. I recently downloaded GIFCURRY form Github via a ZIP file, which contained an installer in there.
But I also understand where you are coming from, you just want to start it up and go. And that is one of the reasons why big companies have IT guys and gals, their responsible for making sure all the computers in the company are able to do just that for you.
EDIT: One more thing, notice how all of us are running over here to help you, for free? When was the last time you saw Microsoft do that for its customers? Even 21-years ago, if you wanted support from Microsoft, you had to pay like 100-dollars for a service call. 21-years later, I bet they charge 200 an hour now for service calls.



