> - Is there really no tools for Linux world that allows managing loads of Linux machines in an easy manner as it is in MS word (applying GPO policies)? A tool that can be easily set up and managed and doesn't have to always resort to scripting?

Nope, there's no unification in configuration formats (yml, ini etc), locations (/var, /etc, /usr, /opt/etc) or registries (dconf, gconf).

Yes, standards exist, but they are rarely followed to the letter.