1. Boxing takes all payments and divides into 2 groups:
A) Payments with field value 1 (1, 4)
B) Payments with field value 0 (2, 3)
Since the sorting by the additional field is in descending order, then first you will be shown group A and then group B. That is. you will see payments 1 and 4 first.
2. If sorting 2 is specified, then payments INSIDE the group will be sorted according to this sorting. Take for example group A. There are payments with id 1 and 4, since sorting in ascending order will show payment 1 first and payment 4 second. Total:
one
four
2
3
We open your box, we get
https://prnt.sc/y9285t 2 payments with an additional field = 1 go first, sorted by ID
https://prnt.sc/y92acj in ascending order.
After we see all other payments, sorted in ascending order by id BETWEEN THEMSELVES
https://prnt.sc/y92czk , i.e. in your group B