I've also found that Histograms (derived from *.jpg) is not convenient and doesn't tell the whole truth.
I, as many others, found that "Histograms (derived from *.jpg)" can be used for as along as you took several steps like using UniWB, using options to make OOC JPG less contrast/flat, possibly using AdobeRGB instead of sRGB, etc (yes, OOC JPGs are not usable after all that - but I am not a jpg shooter) and using rawdigger to understand how that histogram is correlated w/ raw histogram... plus my cameras (E-M1 and A7) have "blinkies/zebra" that using the same approach can be tuned to show where raw clipping actually happens/happened in place (before shot in live view and/or post shot in review)... granted it is not a replacement for true raw histogram (unless you have firmware options like Magic Lantern for some Canon cameras, which apparently has such option implemented) and requires some time invested when you get a new camera, but it pays off.