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If I understand correctly, I think this paragraph should be updated from:

   While disabling CLAT is impactful for all applications and traffic
   flows already utilizing CLAT, disabling CLAT is recommended not only
   from a performance perspective, but also from a security point of
   view.  Section 11 discusses this aspect in more details.

To instead start with:

  While disabling CLAT when native IPv4 is available ...

I think that paragraph isn't trying to say that disabling CLAT in general is recommended, but only disabling it when native IPv4 support is available.