Not a surprise really. Any self loading rifle will require a set of locking lugs. It’s just a question of configuration. If memory serves the QBZ95 has an AK like configuration. But Norinco has made AR clones to so they have familiarity with both systems.
So if you see lugs that expected it’s the question of how many and what shape.
This is not correct, not every self loading rifle have "lugs". HK G3 and MP5s are not locked at all but simply delayed, SKS and FN FALs have tilting bolts. It is simply that 2 of the most popular modern rifles, AK47 and M16s (along with manufacturing advancements that eroded away its disadvantages) have rotating bolt that it became prevalent.
It is actually a bit of a surprise because for all intends and purposes that we appear to have an external ejector paired with a AR style multi-lug bolt.
An AR Multi-lug bolt face with internal ejector (the little button protruding from the face)
An AK bolt face with no ejector (ejector is external and not a part of the bolt), notice the 90 degree cut for the external ejector