From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Westphal <fw@strlen.de>
Subject: Re: [nft 0.9.3 | kernel 5.4.48] cannot get NAT to work
Date: Wed, 24 Jun 2020 10:53:15 +0200
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To: =?utf-8?B?0b3SieG2rOG4s+KEoA==?= <vtol@gmx.net>
Cc: "netfilter@vger.kernel.org" <netfilter@vger.kernel.org>, Florian Westphal <fw@strlen.de>

ѽ҉ᶬḳ℠ <vtol@gmx.net> wrote:
 
> Getting somewhere now, unless there are different kconf flags in 5.6 for
> building that module, least on this node with 5.4:
> 
> modinfo: ERROR: Module alias nft_chain_nat not found.
> 
> Which kconf flag is supposed to generate that particular module? Looked into
> https://github.com/torvalds/linux/blob/v5.4/net/netfilter/Kconfig but could
> not find something specific that builds that module.

https://github.com/torvalds/linux/blob/v5.4/net/netfilter/Makefile

-> CONFIG_NFT_NAT

... which you seem to have enabled already.
So I would guess that the build system used doesn't pick the module up
for some reason.