You have a manky version or an alias over find somewhere. On my system Ubuntu 24.04: $ find --version find (GNU findutils) 4.9.0 $ find --help works

You have a manky version or an alias over find somewhere. On my system Ubuntu 24.04: $ find --version find (GNU findutils) 4.9.0 $ find --help works $ find -help works $ man find then /help works