Yes like a slight hump trailing on the back of the sail. The trailing hump seems to differ a bit among the variants, but I am confident to say this is an 093 variant. It also has a pitot on the tail fin for a TAS, which is another characteristic of the later 093 variants whatever its called (093II, 093G, 093B, whatever.)It does look too big to be a Yuan, so is likely nuclear - but don't all 093 versions known to date have a vertical sail trailing edge? Also the shape of the rudder is different, with a greater leading edge sweep.
To be honest, I'm inclined to dismiss it as fake though.
Russia's own AIP efforts on the Lada class submarine flubbed, mainly because of the wrong direction, using fuel cells ala Germany, rather than Stirling engines, ala China and Sweden. The Russians would have to start from square one to restart in a new direction. Getting Stirling engines from China would be much easier. Another advantage the Chinese have would be Lithium battery technologies.The question is why would russia want to co-develop a submarine with china for this purpose, if they already have submarines of their own for export? that will also mean the sharing of military tech.