Ok, I observed a few more "last 8 card ordered" and here are the results, including the previous:
Number of 4070, number of AMD cards/number of Nvidia cards
2, 2/6
2, 2/6
0, 3/5
2, 2/6
3, 2/6
2, 1/7
0, 5/3
2, 0/8
0, 3/5
13 out of 72 cards ordered were 4070. That is: every sixth card ordered here is a 4070. It is probably the second most ordered card here, behind the 3060.
21 out of 72 cards were AMD. That is nearly 30%.
BTW if I count the cards in the first 24 most sold cards, 8 of them are AMD, that is a third, but that does not have an information about the number of the cards sold in it.