Resizing left or top side of GNOME Terminal window on Wayland causes opposite sides move
Originally reported gnome-terminal#56 (closed) but instructed to report to here.
When you resize the terminal window on the left or top side (and top left or bottom left corners) the right or bottom side, respectively, will hop from its location. So if the right or bottom side is against the desktop border or another border it will not stay there. Resizing the right or bottom side of the terminal window doesn't cause this behavior on the opposite sides.