China today flew two different Sixth generation aircrafts, a generation ahead of F22 and F35.
The one with the delta wing has 3 engines, the 3rd engine is rumored to be a ramjet/scramjet engine for operating in excess of 100000 feet or fly faster than any operational fighter aircraft.
The first prototype ( the one with delta wing) was spotted via satellite in 2021, while flight control software animation was seen as early as 2023. But no one knew at that time what exactly they where looking at.
Don't believe everything you see or read. They have done this before...and what looked like something that was very advanced, actually turned out to be far less....but it looked good!