Whenever I play the game, I get this overlay on the top left of my screen:
How can I get this to go away?
Ctrl+Shift+O toggles that OSD.
It won’t go away, you’re stuck with it forever 
I am pretty sure that mod has text when it starts explaining how to remove it. But maybe I’m thinking of something else? It was around the time ToB and NieR: Automata released that I added that disclaimer.
That disclaimer was added first in FAR. I don’t remember if you ever included it in TBFix though.
In fact, I don’t think the disclaimer was ever brought to the “general” OSD. I have ever really seen it in FAR I think?