Currently, Anki has only one new card gather option which allows the user to prioritize subdecks that are closer to the top.
This option (Deck) gathers cards from each subdeck are gathered in ascending position. However, I would like it to gather cards from each subdeck randomly (still picking up cards from the highest subdeck first) because this would be more optimal for learning.
This still has a problem. When you have a large number of new cards and you do some of them, the new cards that you will subsequently create will statistically have a higher chance of being given a smaller position.
There is a reason why Anki suggests that with V3 scheduler, it is best to set the new card order to be in order of creation and to adjust the card gather order instead.