NRaw is half the data rates of R3D NE and NRaw files can be saved after trimming, but R3D NE files save without trims, which makes R3D NE 20x more data heavy in worst case scenario.
Started to convert R3D NE files to H.265 with RedLog10 and 500Mbps as a temporary solution. With NRaw there is no need for that.
Z6iii has already good H.265, and IMHO is a better camera with more buttons and good EVF. ZR is just more fun to shoot, but getting WB, exposure and focus right takes a bit more time.
The R3D NE footage does look more pleasing to the eye than NRaw when compared side by side. But without comparison NRaw looks good too.
R3D NE is better in the shadows, but NRaw does not clip so easily in the highlights, so pick your poison based on the shooting scenario you are in. Neither is perfect at the moment, but both can give good results.