Thanks for the answer, you mean a new 2x12 AXS "Sram Rival 46/33", right?
Not the old one?
Yes 2x12 AXS Sram Rival 46/33, Chain is KMC X12, according to KMC fully compatible with the systems of all manufacturers.
I bought the crank at r2bike for 225€, cheaper you get no Powermeter crank.
The only drawback I see is the weight and only one-sided. But it is enough for me.