This isn't a new idea, see for example this discussion from last year: https://www.chess.com/forum/view/chess-variants/chess-921-600
rec new variant- Double Chess960
Hello!
To recommend your Double Chess960 variant to Chess.com, visit their feedback page and describe your idea, highlighting how it differs from traditional Chess960 and its potential benefits. Include examples if possible, and submit your suggestion through the form. Good luck! Do you play a lot of Chess960 yourself?
I want to recommend to Chess.com a new variant I call Double Chess960 where white has a different chess960 starting position than black's chess960 starting position. I fancy this as the ultimate need for complication and fighting chess.
Also is it possible to include Chess960 on Stats https://www.chess.com/stats