I use a left-side taskbar and I in general have been having trouble with window positioning on this new release.
The window is bumped up from the bottom of the screen and to the right a bit, pushing onto my 2nd screen.
I found I had to drag my task-bar and toggle the "Custom Borderless Fullscreen" modes a couple of times to get the window position properly. So there is a workaround but it's a pain.