ProxyChains vs Whonix

Hey im Kind of Confused i used to use tor and proxychains along time ago and i just started using whonix and i relized that every so often my ip will change just like proxychains but my question is: Does whonix already use proxychains and if not what is the benefit of me using them with whonix i read the doc already and i couldnt find my answer i also read the risk of using a proxy/vpn/ssh.

Whonix versus Proxies - Whonix

No. And since this is such a basic design decision, if that would be the case, that would mentioned on wiki/Main_Page, wiki/FAQ and/or easily discoverable on search engines.