Adding today I tested some u32 nftable equiv rules and ran into similar issues on chatgpt. Provided I set chatgpt what OS+version and nftables version I am using it will get some of the IP header locations correct but it still gets the syntax wrong for the older version of nftables that Alpine ships with. Sometimes it does get the older syntax right, sometimes not. If I correct it chatgpt it will agree that is a safer method so I should probably start by saying to use the older methods.

Both Grok and ChatGPT appear to have learned from the same sub-optimal locations.