I know it is not the fungus (or mushroom)

My point is, it is not true Cantonese dish at all.

Or in my world, I dont count those in Canton, Mainland China are being the same as those Pre- Communist ruling, nor being the same as those grew up in Hong Kong.

In Ancient Chinese culture, there is a saying:

You need to be wealthy for 3 generations, before you know how to eat well.

Those in mainland China are, in my opionion of course, only became rich in less than one generation - or translated to "Sudden Rich". They harely know anything about the culture of eating.