I don't keep up with computer chess titles other than hearing that Stockfish is the strongest engine in the world. I caught an article that talks about Fritz defending the 2023 world title. I see no mention of Stockfish. I've Googled it but it seems Stockfish isn't even mentioned.
https://en.chessbase.com/post/fritz-wins-2023-world-chess-software-championship
The events have specific rules and entry requirements. Maybe the Stockfish team either doesn't meet the requirements or decided not to compete.
I don't keep up with computer chess titles other than hearing that Stockfish is the strongest engine in the world. I caught an article that talks about Fritz defending the 2023 world title. I see no mention of Stockfish. I've Googled it but it seems Stockfish isn't even mentioned.
https://en.chessbase.com/post/fritz-wins-2023-world-chess-software-championship