Ok I think I fixed it, I set screen safe area to 0% and now my mouse no longer goes off screen onto my 2nd monitor and I don't see the taskbar or the explorer bar at the top.
This is not resolved as of 1.14.1.
Ok I think I fixed it, I set screen safe area to 0% and now my mouse no longer goes off screen onto my 2nd monitor and I don't see the taskbar or the explorer bar at the top.