Up to 18.04 it was possible to install nautilus-compare to get a context menu that provide a compare later and compare to option. Now that I'm trying an upgrade to 20.04 I'm wondering how to do this in Focal. I assume it can be done using the fma-config-tool, but if someone has done it already, I'd like to avoid trying to invent an inferior wheel myself.
software-installation – How to Use Nautilus Compare in Ubuntu 20.04
context menunautilussoftware installation
Best Answer
Update 20200522: the package is available in PPA and is installable by:
The package was removed from official Ubuntu 20.04 LTS repository.
But you can still download package from 19.10 manually and install it:
then restart Nautilus and use it as before.