I was trying to follow the installation tutorials but it didn't work. Apparently there is versions of open Foam for Ubuntu 18.04 but not for the one that I have which is 20.04. Anyone can help me with that?
I have checked the openFoam site again, and they have uploaded the installers for Ubuntu 20.04 on 08.05.20. With it I could install the program
Support for bionic, focal and groovy: openfoam.com wiki
curl -s https://dl.openfoam.com/add-debian-repo.sh | sudo bash
sudo apt-get install openfoam-default