If you look at the newest fighters coming from China the J-20, J-16 and the J-10C they are all focused on multi-role and ground attack. It seems that china has abandoned the idea of air superiority. And what has become of the J-11D ?
I'm surprised how you could classify J-20 and J-10C as focusing on "ground attack". We haven't seen J-20 carry any A2G payloads as of yet (though it almost certainly is capable of doing so), and we only know J-10C is capable of carrying some A2G weapons.
In the case of J-16, it is clearly meant to be able to haul a variety of A2G payloads, but it is also capable of carrying the most capable A2A payloads the air force has at its disposal, in a proven highly kinematic airframe. It is hardly a dedicated "ground attack" aircraft (like A-10 or Su-25) or even dedicated "strike" aircraft (like F-111, Su-24, JH-7/A or even Su-34), and more of an inherently multirole aircraft (like F-15E, Typhoon, Rafale, Super hornet)
In this day and age all air superiority aircraft are inherently multirole to a degree anyway.
It is rare for a "dedicated" air superiority aircraft to lack the ability to employ A2G weapons these days. For example, F-22 can employ JDAMs and SDBs. That doesn't mean F-22 is "focused" on ground attack, but rather it is multirole capable.
Given all that, I think it is more reasonable to say that an aircraft type is "focused" for a certain mission or not is less dependent on whether it is capable of carrying a given A2A or A2G payload, and more dependent on how much of its training and exercises annually are dedicated to A2A or A2G missions... and in the case of J-20 and J-10C I suspect the vast majority of their training is for A2A, while for J-16 it might be slightly more even between A2A and A2G.