It is funny to see people's self-serving bias at work. The plane isn't called J-20 for no reason. If it were a fighter bomber, it would have been called JH-20. Plus, with F-22 being the most challenging problem to PLAAF, it doesn't make sense for China not to build an aircraft that would address this problem once and for all. This, and the fact that China has no history of building new dedicated test-demonstrator means J-20 is very much a fighter prototype, period.
All those arguments about J-20 being a bomber, test-demonstrator, etc. are actually non arguments intend to side-step and avoid discussing J-20 potential capabilities. Implicitly claiming that J-20's mission profile does not intend the aircraft to be maneuverable or attack targets in the sky is just so much easier than admitting that the F-22's invicibility myth will soon be busted.
Oh, and the canards? They play a critical role in the aerodynamics properties of the aircraft, and as such, their design have been frozen years ago along with the shape of the rest of the aircraft. The fact that Chengdu sticks with canards show that canards aren't detrimental to stealth as myths potrait to be. Don't let them stop you from fapping at the idea that the canards will somehow be modified away though. Just be aware that engineering principles say the canards are staying and will not receive design changes.
