I had a suspicion of this that's why I wrote the way I did. Call this automated aperture if you like.
Even third-party lenses provide aperture linkage these days. Preset operation, once the normal way back in time, is becoming very uncommon.
I think it's unlikely a modern lens design, Chinese or not, doesn't provide a minimum of automated aperture functionality. In fact, I cannot recall testing any third-party lens for F-mount lacking that feature for a good many years.
Whether they also have implemented a CPU chip is also becoming quite common.