I would say PAK-DA is a rather very late answer to the B-2,
Well, I think, if you say it absolutely right, then “80” is the answer to all American stealth strategic bombers, including promising ones.
But closer not to the B-21, but to the NGB. And larger. This is judged by the model on the table.
As well as maintaining parity with growing China.
I think the B-21 will have the most advanced skin and coating.