I think it is not possible to install lenses in gnome3. But I have a solution for you.
It is possible to install more then one desktop interface. As you know, Ubuntu has been using gnome3 since version 17.10, but it is possible to install unity next to gnome3.
I think it is not possible to install lenses in gnome3. But I have a solution for you. It is possible to install more then one desktop interface. As you know, Ubuntu has been using gnome3 since version 17.10, but it is possible to install unity next to gnome3.
https://linuxconfig.org/how-to-install-unity-desktop-on-ubuntu-18-04-bionic-beaver-linux
Regards.