Uh, no. The Z6 is Nikon's version of the R6. Unfortunately (for Nikon), the Z6 missed the R6 mark by a wide margin. I expect the Z6 iii to outperform the R6ii in many if not most respects. Leapfrogging the competition is a fact of life. Since it doesn't have a stacked sensor, it will be no closer to the R3 in performance than any other non-stacked-sensor camera. However, if it gets as close as does the R5 (if not closer), than it will be a worthy alternative to stacked-sensor cameras like the R3 and Z8 (if you don't mind the lower resolution).