This is a design choice by upstream so we are bound by their decision in the upstream bug.
Although it's only partly useful to move modal dialogs. At best you'd be able to move them out the way to see what's below, which is useful for reading and copying information. You'd still never be able to interact with what's below them because they're modal. Also note you can move modal dialogs if the parent window is smaller. It just moves both at once :) ** Bug watch added: gitlab.gnome.org/GNOME/gnome-shell/issues #2124 https://gitlab.gnome.org/GNOME/gnome-shell/issues/2124 ** Also affects: gnome-shell via https://gitlab.gnome.org/GNOME/gnome-shell/issues/2124 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1860279 Title: Cannot drag a modal window. To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1860279/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs