Not quite the same thing.
The AD104 GPU has a 192 bit bus, so you could do a 24GB version. A 16GB version would mean losing two memory channels and dropping down to what the 4060Ti will have.
I suppose someone could try replacing two of the memory chips with larger ones, but I'm not sure how well that would work. I don't think differing memory chips would get along on the same board. (Though that is how they do it on the consoles at the moment, so maybe)
It is possible with the RTX 3060 because there are two variants of the GA106 chip one with the 192bit bus and one with the 128bit bus. It is clear that some of the GA106 have working memory channels, but they weren't populated to make more 8GB cards to fill orders. There is also a GA104 based model with 12GB.