Seems i need to consider a full time move to Palemoon, as i am currently on 45esr (their last GTK2 based esr).
Its really "funny" how it seems i can get Qt5 to work on an "old" X11 install, but GTK3 balks at same.
If the FOSS world really wants a foot in the door on the desktop they really need to learn to properly do backwards compatibility. Yes, it is not a glorious job unlike working on the latest shiny framework or language. But it is what has kept the likes of Microsoft in the top spot all this time.
Frankly i fear that once Torvalds steps down as kernel boss, Linux as a whole will fragment into a million variants with diverging APIs.