Did you not see where I said not to mention UI scaling and the reason why?
There used to be an addon that helped with the quest text, achivement text, and few others increase their size without increasing the window (or distorting it) called Fonter, but it has completely disappeared from the net (and I don't have an out of date copy to use anymore).
Anything else that increases those are loaded into bloated addons where I have to dig through 20 options to just get to that 1.
I was going to try ElVUI but that piece of crap defaults to an 8 pt font on every window and I can't read that small text. If it had a better setup at the start (instead of merely being an install function) where I can tweak every little thing while it's installing, I might like it but as it is, I HATE it with a passion.