Is “Marriage alliance conspiracy and senior minister of Eastern Wu” true?

based on fact

According to the 'Records of the Three Kingdoms, Book of Wu, Biography of Lü Fan', he was a meritorious senior minister of Eastern Wu, diligent and self-disciplined, rising to the rank of Grand Marshal. In the 'Romance of the Three Kingdoms', he is depicted as a strategist who cooperates in framing Liu Bei during the Sun-Liu marriage alliance.

Lü Fan

In official history, he was a senior minister holding the title of Grand Marshal, while in the novel, he is portrayed as a strategist who conspires to harm Liu Bei during the marriage alliance between Sun and Liu.