Switch to full screen, then back to window, then move Hearthstone to screen 2 releasing at the top of the screen, so it auto full screens.
This may take more than one attempt, but it works for me. I have been using this trick to get full screen window on screen 2 for months. I figured it was time to share the wealth.
For me everything is much simpler: switch to window mode, decrease resolution to make the window smaller, drag it into the middle of second monitor (the window should not touch any edge) then switch to fullscreen. That’s all.
That exactly what I do. Except I drag it to the top middle, I guess each OS a different or maybe were both doing the same thing. You are just wording it a little different or being contrary.
¯\ (ツ)/¯
The lesson I think youre trying to teach me here, is if I find a solution, that after hours of research online, yielded no solutions, I should keep it to myself.
Thanks teach.