I'm having a very similar issue. With 21.10 I noticed that the issue goes away, when I change the scale to 100% (instead of 200%) on the secondary screen.
Main Screen (USB-C): 3440x1440, 100% Secondary Screen (Built-In): 3840x2160: 200% I'm having the issue with or without extensions. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1888098 Title: Ubuntu 20.04 gnome-shell places windows on second screen when started from primary screen To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1888098/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
