On November 3, Russia’s latest Su-57 stealth fighter jet arrived at Jinwan Airport in Zhuhai, China, preparing for the 15th China International Aviation & Aerospace Exhibition, which begins on November 12. However, this aircraft, which the Kremlin hails as the “world’s most advanced fifth-generation stealth fighter,” has unexpectedly drawn criticism from Chinese social media, turning it into a subject of mockery before its official appearance.