[Semibug] Is a NAT router also a Service Proxy Firewall?

[Jonathan Drews]

On Thu, Sep 22, 2022 at 03:17:16AM -0600, Jonathan Drews wrote:
> Is a router that connects  63.239.66.138 to say 192.168.1.4 by NAT a
> type of Service Proxy Firewall?
> 

I did find an answer here:

PROXY vs NAT -  Understand the Difference
https://ipwithease.com/proxy-vs-nat/

My question is: Does NAT (Network Address Translation) also serve as a
firewall?

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Kind regrads,
Jonathan