I am logged in on the FLUKA website and download the official Linux binary package(pic. 1).
However, the downloaded archive (gfortran>=9, 64 bits (.tgz)) does not contain the FLUKA executable binary.
The bin/ directory only contains wrapper scripts and utilities. No fluka binary (tens of MB) is present(pic. 2).
I may not have formally accepted the licence, as the website did not present any visible licence agreement or acceptance button(pic. 3).
I am not a very advanced software user, and without your suggestion I would not have been able to resolve this issue.
Following your advice, I successfully built FLUKA from the src directory using make.
After the compilation, the provided example cases ran correctly and completed without errors,
which I understand can be considered a successful installation.