Re "FWIW, I have never used Spotlight since I find it rather superfluous." I seldom use it myself; I just use it for off-the-books tricks. I wrote what I did only to convey that I knew about the possibility of using it to circuitously achieve my ends.
Re "The Applications folder is arranged alphabetically. So how difficult is it to scroll down to "M" if you're looking for Mactracker?" you did not read what I had written in my post: "You can't find an oddly-named app when you need it but can't recollect its odd name. "
Re " I've created aliases to my most used apps and put them in my dock" you don't need to create aliases for apps and/or apps in the dock; it's pointless. You create an alias (a link to the original) of a document of whatever type when you want to, say, cross-file it. As for apps and the dock, simply drag whatever app to wherever you want in the dock or if you've opened an app and decide you want it to stay in the dock, ctrl-click on it and select Options->Keep . . . .
Re "As far as I know, changing the name of system installed apps . . ." this was a general "I-don't-know" on my part because, as I wrote, it's a bit of a kludge. I do know for sure that Preview and TextEdit behave perfectly well if you change the name of the app wrapper. Years back I duped each to a MyPreview and a MyTextEdit because I wanted to maintain separate workspaces for only those two apps to keep work/official/business and personal documents in their own respective workspaces for organization. Another use for this technique has long been practical: every now and again a .pdf or .rtf lacking in correctness or integrity will crash the respective application, so it's wise to open something you're testing or have acquired from a dubious source in a copy of the respective app as that won't have you pulling out your hair. Finally, this app-duping got necessitated from OSX because in predecessor NEXTSTEP/OpenStep it was possible to open as many instances of an app as you wanted by Alt-clicking on the app.