Thanks a ton @Fizzlemizz and @Elvenbane for helping out
I tried posting that newer wall of text into the addon website you recommended and loaded in - unfortunately it did not work
Im sure there is an addon that may do this for me - or even just a workaround (for our own sanity) - but I appreciate the help thus far, so dont feel obligated to continue trying
Edit: I also could just use a macro that temporarily hides the tooltip when Im hunting down quest mobs (perhaps a toggle on/off macro for default tooltip); really the only purpose of my asking in this thread is so quest objectives dont have any features labeling them as such, as to immerse myself
I also must say this makes me want to jump into coding lol
Double Edit: I even found this thread that @Fizzlemizz is also in (lol) and tried the macro at the bottom, but to no avail - this ability to toggle would also suffice. Turn Off Tootips - Guides / UI and Macro - World of Warcraft Forums (blizzard.com)