Plesk extension: NodeJS

Plesk extension: NodeJS​

Plesk Onyx Version 17.5.3 Update #20
CentOS Linux 7.3.1611 (Core)‬​

I installed extension nodejs and go to nodejs for a domain.

First question here is... is this nodejs extension a generally SUPPORT or a special case that a domain will run only as nodejs application, instead of apache(PHP)?

Docu:...​