Try to downgrade:
sudo apt install gnome-shell=3.36.1-5ubuntu1 gnome-shell-common=3.36.1-5ubuntu1 gnome-shell-extension-prefs=3.36.1-5ubuntu1
Try to downgrade:
sudo apt install gnome-shell= 3.36.1- 5ubuntu1 gnome-shell- common= 3.36.1- 5ubuntu1 gnome-shell- extension- prefs=3. 36.1-5ubuntu1