The package lf-royarg-bin was brought in royarg-repo due to official packages lacking a proper .desktop file, even though it was available upstream. That file is required to use lf as a default file manager.

Since then the .desktop file is being included in official packages, making this unofficial package useless.

Following deprecation which rendered this into an empty package, it has now been dropped from royarg-repo.

To continue using lf install the package from official ArchLinux repositories.