That was a quick Google result it might not be in that article. I just chose it because AP. There's dozens of articles about conversations between Xi and Biden.
The discourse is generally "By 2025" "in 2027" and "before 2030". Given the discourse and tension in the South China Sea, it looks very much like a "By 2025" situation. Just my bet. Ties into computational supremacy, embargos, TSMC, Taiwan reunification, and more.