When Minecraft Dungeons launcher is open, if I move it to a second monitor then Launch the game, the game still tries to open on monitor 1 even though I want it on Monitor 2.  To remedy it, I have to go to settings after the game opens, change it to windowed mode, drag the window back to the 2nd monitor and then set it back to Full Screen or Borderless window mode.  

Instead, whatever screen the launcher is on when I start the game should be the monitor the game opens on.