Worth to say that in my case, even 'gsettings set org.gnome.shell.extensions.dash-to-dock show-mounts false' doesn't fix it. Also clicking on dotted button "Show aplications" doesn't do anything until I click on Activities in top bar once. Ubuntu 20.04 LTS (no custom extensions, kernel 5.11)
Worth to say that in my case, even 'gsettings set org.gnome. shell.extension s.dash- to-dock show-mounts false' doesn't fix it. Also clicking on dotted button "Show aplications" doesn't do anything until I click on Activities in top bar once. Ubuntu 20.04 LTS (no custom extensions, kernel 5.11)