If the results the LLMs are grounded in haven't changed, then LLMs haven't changed SEO much.
...except, of course, stealing clicks from the actual creators.
It's an increasingly hard game to win, with diminishing returns in clickthroughs from "winning." Which makes it all the more crucial to write stuff your followers want to read, and to grow that following person by person, even if it's far slower to start than traditional SEO was.