I come from https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1932328
For me, they look related. Before using Thunderbird (or before it mis-behaves), Alt-TAB works. When Thunderbird goes wrong, Alt-TAB stops working. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1950925 Title: alt-tab doesnt work anymore after upgrade to 21.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1950925/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
