They must have adjusted something. I just fed your exact query to Gemini and it now refers to the meme: "The memes you are referring to center around the running joke that Croatian basketball player Dario Šarić was "never coming over" to the NBA".
Gemini or google search? those are very different things.
They can both be landed on as a result of using the google search box.
Gemini is the gemini app (gemini.google.com), LLM output on search is AI mode / AI overview. Not surprising given it's google, but those are vastly different product / teams / infrastructure / web data availability.
my try said there were no memes about dario in turkey, and then suggested I might be thinking about the "dario saric never coming over" memes.