OK solved, when starting "Gnome Tweaks", on the Extensions part, Extensions were disabled, if I enable them, they rework.
"Fixed". ** Changed in: gnome-shell (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875179 Title: All Gnome Shell extensions disabled after Ubuntu 20.04 update and no way to enable them To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1875179/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs