Remy D. Farley [off-list ref] wrote:

quoted

Its used by compatibility mode, it requires an nft binary linked
to libxtables, native nftables doesn't need it.

I would prefer not to mention its existence.

Ah, I see. Netlink-bindings have a tool to decode netlink communication, so
it's a bit awkward to show a bunch of unkown-operations on a common command.
I'm fine keeping it downstream.

No, showing unknown-operations is even worse.
Maybe just document in commit message that this is to avoid
clutter and present something more readable.

And perhaps mention that this is only for iptables-nft in the yaml file too.
(nft uses it on 'nft list' only if it encounters a rule added by iptables-nft).