You're not going to know if they used an LLM to write a better shader or if they copied code from stack overflow like we used to do a few years ago.

I'm so excited that LLMs are great at coding. Most of my problems I have with various games I love is that they're written by people who couldn't write performant code at all but are great at building a world and telling a story.

Just look at Escape from Tarkov. Great game but some of the worst software architecture choices of all time. It used to take 4 minutes to get out of match and often 10-15 minutes to get into one and it was all just because of shitty code / design.

It's been fixed now and I'm sure modern LLMs were the reason.

John Carmack is the exception not the rule.