You have been subscribed to a public bug: In The Ubuntu Settings > Appearance there is a Dock option to "Show On" specific monitor. If there are multiple monitors and they are of the same brand/model number, the setting gets confused and always defaults to "All displays".
> lsb_release -rd Description: Ubuntu Focal Fossa (development branch) Release: 20.04 GNOME 3.36.0 ** Affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags: bot-comment display dock focal -- Dock Show on All Displays https://bugs.launchpad.net/bugs/1871358 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs