>>3164142The biggest difference between the raw and jpeg histograms/blinkies is caused by the white balance.
If your camera can read white balance from a photo you can avoid white balance adjustments by using something called a "universal white balance" or "UniWb" image.
Every camera model requires a tailor made UniWB image because every sensor is different.
With UniWB activated the (preview) images you take will most likely look very green.
That's because green pixels are usually more sensitive than other pixels.
But the histogram and blinkies will be very close to what you can expect when working with the raw file in post.