I wouldn’t expect too much improvement on newer sensors regarding noise. The sensor of the Nikon D850 should be still quite competitive: https://www.dpreview.com/reviews/image-comparison/fullscreen?attr18=lowlight&attr13_0=nikon_z8&attr13_1=sony_a7rvi&attr13_2=nikon_d850&attr13_3=canon_eosr5ii&att…