It's not necessary to shoot JPG to get a near instant JPG. One is embedded in every NEF file. On the PC there is a program called
Instant Jpeg from RAW. You can select a few or all of the images in a folder, right click and
Instant Jpeg from RAW will extract the JPG(s) in seconds. I don't use it much but sometimes I find it useful.
Here is a link for both Windows and MAC versions...
http://michaeltapesdesign.com/instant-jpeg-from-raw.htmlYou select your OS and received a link by email. There are versions for Windows 7, 8 and 10 and macOS 10.10, 10.11 and 10.12. I don't know if
Instant Jpeg from RAW run on macOS 10.13. I haven't tried it on any macOS.
Dave
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I turn off almost all in camera auto correction features of my D850 but then I can add them back since I use Nikon Capture NX-D to develop NEF(s). I like Capture NX-D for its control and excellent color.
It also afford me an opportunity for an occasional nap during the day.