Is “Feilian, a high minister of the Shang dynasty, flattered King Zhou, and after King Wu's successful campaign against Shang, he was beheaded and deified.” true?

Feilian indeed existed in history. The Records of the Grand Historian, 'Annals of Qin', clearly records: 'Feilian begot Elai. Elai was strong, Feilian was swift, and both father and son served the Shang tyrant Zhou with their physical abilities.' This indicates that Feilian, like his son Elai, was a real minister who served King Zhou of Shang with special physical prowess and talent. After King Wu conquered Yin, Feilian died for his loyalty to the Shang dynasty. Although Investiture of the Gods exaggerates his negative character and adds a deification ending, his service to King Zhou is supported by official history.