oech3 [1] filed a deletion request for r-sha3sum [2]: Abandoned alternative for sha3sum from 2023. This was not latest and packaged with provides=(sha3sum) which cause missing binaries for few years.
[1] https://aur.archlinux.org/account/oech3/ [2] https://aur.archlinux.org/pkgbase/r-sha3sum/
