Well, @MariMakes, I have found a slightly less cumbersome method to open Cura. Although the window opens too far off screen to grab the title bar and drag it to a central location on screen, it turns out I can extend the right edge of the window with the mouse to the right, thereby exposing enough of the title bar to drag the window. Still not ideal, but at least I don't have to use the Alt-spacebar Window menu technique.