Thank you Hugh for confirming what I and some others have been suspecting. I'm not sure if I have to right to re-assign the suspected bug cause, but that's what I'm going to try to do.
** Package changed: nvidia-graphics-drivers-180 (Ubuntu) => gnome- desktop (Ubuntu) -- Separate X-screen, apps launched from 2nd screen appear on first screen https://bugs.launchpad.net/bugs/339783 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-desktop in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
